Huang buys 3 shirts that each cost the same amount, a pair of pants that cost $12, and he pays with a $100 bill. Which expression represents the amount of change Huang should receive? Select three options.


100 – (12(3x))
100 – (3x+12)
(100 – 12) – 3x
(100 – 12)(x+x+x)
100 – (x+x+x) – 12\

Answers

Answer 1

Answer:

(100 – 12) – 3x

Step-by-step explanation:

(100 – 12) – 3x would be the correct answer because:

100 is the total amount he paid

12 is the cost of pants

because we don't know the price of shirts yet so it would be called x

He buy in total of 3 shirts so the equation for the price would be 3 * x = 3x

So it would be:

total money paid - pants costs - shirts cost

= 100 - 12 - 3x or (100 - 12) -3x

Hope this helped :)

Answer 2

Answer:

Step-by-step explanation: (100 – 12) – 3x


Related Questions

Approximate the sum of the series by using the first six terms. Round all your answers to three decimal places. ∑n=1[infinity]​n3(−1)n+16​ 5.398

Answers

The sum of the first six terms of the series is approximately 201.

To approximate the sum of the series ∑n=1∞​n^3(-1)^n+16 using the first six terms, we can simply calculate the sum of the first six terms.

Let's plug in the values of n from 1 to 6 into the series and evaluate each term:

n=1: 1^3(-1)^1+16 = 1-16 = -15

n=2: 2^3(-1)^2+16 = 8+16 = 24

n=3: 3^3(-1)^3+16 = -27+16 = -11

n=4: 4^3(-1)^4+16 = 64+16 = 80

n=5: 5^3(-1)^5+16 = -125+16 = -109

n=6: 6^3(-1)^6+16 = 216+16 = 232

Now, let's sum up these six terms:

-15 + 24 - 11 + 80 - 109 + 232 = 201

Therefore, the sum of the first six terms of the series is approximately 201.

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6. Given the following First Derivative Test results for f(x): Z Then circle the following statements that are True. a) f '(0) = 0 b) f "(1) = 0 c) f(x) is concave up for all x > 1 d) f(x) is concave

Answers

Based on the given "Z" shape, we can only conclude that the function is concave up for [tex]\( x > 1 \)[/tex]. The other statements, such as the value of the derivative at [tex]\( x = 0 \)[/tex] and the concavity for [tex]\( x < 1 \)[/tex].

Given the First Derivative Test results for [tex]\( f(x) \),[/tex] which is represented by the letter "Z", we can make the following observations:

a) [tex]\( f'(0) = 0 \):[/tex] We cannot determine the value of the derivative at [tex]\( x = 0 \)[/tex] based on the given information. The "Z" shape does not provide specific information about the derivative at that point.

b) [tex]\( f''(1) = 0 \):[/tex] We cannot determine the value of the second derivative at  [tex]\( x = 1 \)[/tex] based on the given information. The "Z" shape only tells us about the increasing or decreasing behavior of the function, not the specific value of the second derivative.

c) [tex]\( f(x) \)[/tex] is concave up for all [tex]\( x > 1 \):[/tex] Based on the "Z" shape, we can conclude that the function is concave up for [tex]\( x > 1 \)[/tex]. This means that the graph of the function is shaped like an upward-facing curve in that interval.

d) [tex]\( f(x) \)[/tex] is concave down for all [tex]\( x < 1 \):[/tex] We cannot determine the concavity of the function for [tex]\( x < 1 \)[/tex] based on the given information. The "Z" shape does not provide specific information about the concavity in that interval.

In summary, based on the given "Z" shape, we can only conclude that the function is concave up for \( x > 1 \). The other statements, such as the value of the derivative at \( x = 0 \) and the concavity for \( x < 1 \), cannot be determined from the given First Derivative Test results.

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A paint mixture consisting of 25.0% pigment and the balance binders (which help the pigment stick to the surface) and solvents (which ensure that the paint stays in liquid form) sells for $18.83/kg, and a mixture containing 12.0% sells for $10.96/kg. If a paint retailer produces a blend consisting of 17.0% pigment, for how much ($/kg) should it be sold to yield a 10% profit? $ i 17.38 /kg One thousand kilograms per hour of a mixture containing equal parts by mass of methanol and water is distilled. Product streams leave the top and bottom of the distillation column. The flow rate of the bottom stream is measured and is found to be 607 kg/h. The overhead stream is analyzed and is found to contain 94.0% methanol. How many independent mass balance equations may be written for the system? i What is the distillate (overhead) flow rate? kg/h What is the mass fraction of methanol in the bottoms?

Answers

By solving the equations, we can determine the distillate flow rate and the mass fraction of methanol in the bottoms, providing a comprehensive understanding of the distillation process.

For the paint mixture, we can calculate the cost per kilogram of the 17.0% pigment blend by using the prices and pigment percentages of the 25.0% and 12.0% mixtures. The cost per kilogram is determined by taking the weighted average of the costs based on the pigment percentages. To achieve a 10% profit, we add the desired profit margin to the cost per kilogram.

In the distillation process, the number of independent mass balance equations that can be written for the system is determined by the number of components and streams. Since we have a binary mixture (methanol and water) and two streams (overhead and bottom), we can write two independent mass balance equations. The distillate flow rate can be calculated by subtracting the bottom stream flow rate from the total feed flow rate. The mass fraction of methanol in the bottoms can be determined using the mass balance equation for methanol.

By solving the equations, we can determine the distillate flow rate and the mass fraction of methanol in the bottoms, providing a comprehensive understanding of the distillation process.

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a. State one similarity and one difference between Isothermal system and Adiabatic System b. Distinguish between heat of reaction (AH,) and standard heat of reaction (AH,) c. Construct a process flow path for determining the AH for a process in which solid phenol at 25C and 2 atm is converted to phenol vapor at 300C and 3 atm.

Answers

The heat transfer of the entire process is measured, and the ΔH for the reaction is calculated by subtracting the heat transfer for the gas phase from the heat transfer of the solid phase.

a. Similarity and difference between isothermal system and adiabatic system Similarity: Both isothermal and adiabatic systems involve the transfer of heat.

Difference: Isothermal refers to a constant temperature, while adiabatic refers to a system that does not exchange heat with its surroundings.

b. Heat of reaction (ΔHrxn) and standard heat of reaction (ΔH°rxn)Difference: The standard heat of reaction (ΔH°rxn) is the enthalpy change that occurs during a reaction at a standard state of 1 atm and 25°C. The heat of reaction (ΔHrxn) is the enthalpy change that occurs during a reaction under any conditions.

Standard heat of reaction is the heat change when a reaction occurs between standard-state reactants and products. The standard-state of a substance is its most stable form at 1 atm pressure and at the specified temperature.

The heat of reaction (Hrxn) is the enthalpy change of a chemical reaction and is equivalent to the heat absorbed or emitted during the reaction process.c. Process flow path for determining the ΔH for a process in which solid phenol at 25C and 2 atm is converted to phenol vapor at 300C and 3 atm.

Firstly, phenol is converted to a gas by heating the solid phenol. Then, the amount of heat required to heat up the solid phenol to 300°C is determined. After that, the amount of heat required to raise the phenol from its initial pressure of 2 atm to 3 atm is determined.

The heat transfer of the entire process is measured, and the ΔH for the reaction is calculated by subtracting the heat transfer for the gas phase from the heat transfer of the solid phase.

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Please find the unit vector for both of the vector
Vector 1: -2xi -2yj +k
Vector 2: -4xi -16yj +2k
Please show your steps

Answers

the unit vector for Vector 2 is:

Unit Vector 2 = (-4xi - 16yj + 2k) / sqrt(1[tex]6x^2 + 256y^2 +[/tex]4)

To find the unit vector for each of the given vectors, we need to divide each vector by its magnitude.

Vector 1: -2xi - 2yj + k

Step 1: Calculate the magnitude of Vector 1:

|Vector 1| = sqrt([tex](-2x)^2 + (-2y)^2 + (1)^2[/tex])

          = sqrt([tex]4x^2 + 4y^2 + 1[/tex])

Step 2: Divide Vector 1 by its magnitude to obtain the unit vector:

Unit Vector 1 = Vector 1 / |Vector 1|

            = (-2xi - 2yj + k) / sqrt([tex]4x^2 + 4y^2 + 1[/tex])

Therefore, the unit vector for Vector 1 is:

Unit Vector 1 = (-2xi - 2yj + k) / sqrt([tex]4x^2 + 4y^2 + 1[/tex])

Vector 2: -4xi - 16yj + 2k

Step 1: Calculate the magnitude of Vector 2:

|Vector 2| = sqrt([tex](-4x)^2 + (-16y)^2 + (2)^2[/tex])

          = sqrt([tex]16x^2 + 256y^2 + 4[/tex])

Step 2: Divide Vector 2 by its magnitude to obtain the unit vector:

Unit Vector 2 = Vector 2 / |Vector 2|

            = (-4xi - 16yj + 2k) / sqrt([tex]16x^2 + 256y^2 + 4[/tex])

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carter earned a score of 43 on exam a that had a mean of 35 and a standard deviation of 4. he is about to take exam b that has a mean of 200 and a standard deviation of 20. how well must carter score on exam b in order to do equivalently well as he did on exam a? assume that scores on each exam are normally distributed.

Answers

To determine how well Carter must score on exam B in order to perform equivalently as he did on exam A, we can use z-scores and the concept of standardizing scores.

First, we need to calculate the z-score for Carter's score on exam A. The z-score formula is given by:

z = (x - μ) / σ where x is the raw score, μ is the mean, and σ is the standard deviation. For exam A: x = 43 μ = 35 σ = 4

Using these values, we can calculate the z-score:

z_A = (43 - 35) / 4 = 2 Now, to find the equivalent score on exam B, we can use the formula for z-scores:

z = (x - μ) / σ For exam B: μ = 200 σ = 20

We want to solve for x, so we rearrange the formula: x = z * σ + μ

Substituting the values, we get: x = 2 * 20 + 200 = 240 Therefore, Carter must score 240 on exam B in order to perform equivalently as he did on exam A.

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II Identify the conic section that each equation represents. (x+4)²(x-3)² = 1 2² (x-8) ² 5² 5² 8. (x-2)²+(y+3)=13¹ 5. 11, 4 9 =1 6. 3² I 9. (y + 2)² = -x 12. 2y=(x-3)² 7. (x-1)=4(y+9) 10. x

Answers

This is an ellipse centered at (8, 0) with a semi-major axis of 5 and a semi-minor axis of 5.

The given equation is (x-8)²/5² - y²/5² =1.

This equation represents an ellipse. The equation is written in the standard form for an ellipse, which is (x-h)²/a² + (y-k)²/b² = 1, where (h,k) are the center coordinates of the ellipse, and a and b are the lengths of the semi-major and semi-minor axes respectively.

This equation represents an ellipse. It is in standard form, with the center being (8, 0). The "a" factor (x-8) is 5, and the "b" factor (y) is 5. This means the "a" radius is 5 and the "b" radius is 5, giving us an ellipse with both axes the same length.

In this equation, h = 8, and a = 5 = b.

Therefore, this is an ellipse centered at (8, 0) with a semi-major axis of 5 and a semi-minor axis of 5.

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"Your question is incomplete, probably the complete question/missing part is:"

Identify the conic section that equation represents.

(x-8)²/5² - y²/5² =1

A sinusoidal current given by i=t​cos(t) flows through a 10Ω resistor, R. The power dissipated in the circuit is given by the expression Power =(irms​)2R where irms​ represents the root mean square value of the current, i. (a) Find the root-mean-square value of the current, irms​ over one cycle. (18 marks) (b) Find the value of the Power =(irms​)2R over one cycle, giving your answer to 2 decimal places. (2 marks)

Answers

The RMS value of the current is the square root of the mean of the square of the current over one cycle. Here we are asked to find the root-mean-square value of the current, irms​ over one cycle.

Given equation i=tcostThe current over one cycle is given by∫02π​tcost

dt=2π​Sin

2π​=0Hence, the current has an average value of 0 over one cycle.To find the RMS value of the current, we need to find its square over one cycle and then find its average value.∫02π​[tcost]2

dt=2π​t2cost

dt=2π​(−tcos(t)+sin(t))

∣02π​​=4π​Hence the RMS value of the current is given by

irms​=sqrt(4π​/2π​)=sqrt(2) = 1.41(approx).

So, the root-mean-square value of the current, irms​ over one cycle is approximately equal to 1.41.(b) Power dissipated in the circuit is given by the expression Power =(irms​)2R where irms​ represents the root mean square value of the current, i.The value of R is 10Ω. Using the value of RMS current, we can find the power dissipated in the circuit over one cycle.Power dissipated over one cycle = (irms​)

2R= (1.41)

2 x 10 = 19.88 Joules (approx)So, the value of the

Power =(irms​)2R over one cycle is approximately equal to 19.88 Joules.

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Suppose you have an isotropic, linear, homogeneous semiconductor; of which you must describe its properties in a general way as a function of temperature (indicating thermal, electrical and transport properties associated with diffusion phenomena).
as a function of temperature (indicating thermal, electrical and transport properties associated with diffusion phenomena). Thus
As well as its doping, that is, considering it as an intrinsic semiconductor, n-type and p-type.
Elaborate a scheme that allows to identify and compare this material with its different proposed conductivity, by means of the representation of force and energy curves.
representation of force and potential energy curves as a function of distance (assume a similar behavior to that of an
ionic) in relation to its band structure, Fermi function and charge carrier density. You must indicate for each
for each of them the change on their properties that is implied by changing the temperature, e.g., consider 0 K, 300 K and TC (a hypothetical temperature exceeding
(a hypothetical temperature that exceeds the normal and stable operating conditions of the semiconductor, without implying a crystalline phase transition or change of state).
crystalline phase transition or change of aggregate state).

Answers

The properties of an isotropic, linear, homogeneous semiconductor can be described in a general way as a function of temperature. This includes thermal, electrical, and transport properties associated with diffusion phenomena and crystalline phase transition or change of aggregate state.

Isotropic means that the material's properties are the same in all directions. In a semiconductor, as the temperature increases, thermal properties such as thermal conductivity and heat capacity change. Electrical properties, such as electrical conductivity and resistivity, also depend on temperature. As the temperature increases, the number of charge carriers increases, leading to higher electrical conductivity.

Transport properties in a semiconductor refer to the movement of charge carriers through the material. Diffusion is one of the transport phenomena that occurs in semiconductors. At higher temperatures, diffusion becomes more significant, as charge carriers move more freely and faster. This affects the overall electrical conductivity of the material.

Crystalline phase transition or change of aggregate state refers to the change in the arrangement of atoms or molecules in the semiconductor material. At different temperatures, a semiconductor can undergo phase transitions, such as melting or solidification. These phase transitions can affect the material's properties, including its electrical and thermal conductivity.

Overall, understanding the properties of an isotropic, linear, homogeneous semiconductor as a function of temperature is important for various applications, including the design and optimization of electronic devices. By studying the behavior of these properties, engineers and scientists can develop semiconductors with desired characteristics for specific applications.

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suppose that g is a continuous function, 3_∫^5 g(x)dx=18, and
3_∫^10
g(x)dx =36. Find
5_ ∫^10 g(x)dx
those are intergral symbols with numbers on top and bottom. please
show work. thanks

Answers

Answer:

18

Step-by-step explanation:

Given:

[tex]\int\limits^3_5 {g(x)} \, dx =18\\\\\int\limits^3_{10} {g(x)} \, dx =36[/tex]

We have:

[tex]\int\limits^3_{10} {g(x)} \, dx = \int\limits^3_{5} {g(x)} \, dx+\int\limits^5_{10} {g(x)} \, dx[/tex]

[tex]\int\limits^5_{10} {g(x)} \, dx = \int\limits^3_{10} {g(x)} \, dx-\int\limits^3_{5} {g(x)} \, dx[/tex]

[tex]\int\limits^5_{10} {g(x)} \, dx = 36-18\\\\=18[/tex]

The capitalized cost, c, of an asset over its lifetime is the total of the initial cost and the present value of all maintenance that will occur in the future. It is computed by the formula c=c 0

+∫ 0
L

m(t)e−r 0

dt , where ​
c 0

is the initial cost of the asset. L is the lifetime (in years), r is the interest rate (compounded continuously), and m(t) is the annual cost of maintenance. Find the capitalized cost under the following set of assumptions. c 0

=$300,000,r=4%,m(t)=$20,000,L=15 c=$ (Round to the nearest dollar as needed)

Answers

The capitalized cost, rounded to the nearest dollar, is approximately $74,400.

To find the capitalized cost, we need to evaluate the integral in the formula. Let's substitute the given values into the equation and solve for the capitalized cost.

c₀ = $300,000 (initial cost)

r = 4% = 0.04 (interest rate)

m(t) = $20,000 (annual cost of maintenance)

L = 15 (lifetime in years)

The formula for the capitalized cost is:

c = c₀ + ∫[0, L] m(t) × [tex]e^{(-r_o\times t)[/tex] dt

Plugging in the values:

c = $300,000 + ∫[0, 15] $20,000 × [tex]e^{(-0.04 \times t)[/tex] dt

To integrate the function, we can use the power rule of integration:

∫[tex]e^{(-ax)[/tex] dx = -1/a × [tex]e^{(-ax)[/tex]

Applying this rule to our function:

c = $300,000 + (-$20,000/(-0.04)) × [ [tex]e^{(-0.04 \times t)[/tex] ] from 0 to 15

Simplifying:

c = $300,000 + $500,000 × [[tex]e^{(-0.0415)} - e^{(-0.040)[/tex]]

Using a calculator, we can evaluate the exponential terms:

c = $300,000 + $500,000 × [[tex]e^{(-0.6)} - e^0[/tex]]

Approximating the values:

c ≈ $300,000 + $500,000 × [0.5488 - 1]

Simplifying further:

c ≈ $300,000 + $500,000 × (-0.4512)

c ≈ $300,000 - $225,600

c ≈ $74,400

Therefore, the capitalized cost, rounded to the nearest dollar, is approximately $74,400.

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A smokestack deposits soot on the ground with a concentration inversely proportional to the square of the distance from the stack. With two smokestacks d miles apart, the concentration of the combined deposits on the line joining them, at a distance x from one stack, is given by S= x 2
c

+ (d−x) 2
k

where c and k are positive constants which depend on the quantity of smoke each stack is emitting. If k=3c, find the point on the line joining the stacks where the concentration of the deposit is a minimum.

Answers

Let the two smokestacks be S1 and S2 with a distance of d miles apart. Let the concentration of deposit at a distance x from S1 be S(x).We are given that the concentration of the deposits on the line joining S1 and S2 at a distance x from S1 is given by S(x) = x^2 c + (d - x)^2 k/3.

Here, c and k are constants which depend on the quantity of smoke each stack is emitting.

It is required to find the point on the line joining the stacks where the concentration of the deposit is a minimum.Hence, to find the point of minimum concentration, we need to find the value of x for which S(x) is minimum.

We are given the expression for S(x) which isS(x) = x^2 c + (d - x)^2 k/3.We need to find the point on the line joining S1 and S2 where the concentration of deposit is a minimum.

To find the point of minimum concentration, we differentiate S(x) with respect to x and equate it to zero.dS(x)/dx = 2xc - 2k(d - x)/3 = 0.

Multiplying throughout by 3/2, we get3xc - k(d - x) = 0⇒ 3xc = kd - kx⇒ x = (kd/3c) - (c/3k) x^2 ...(1)Let us assume y = x - d/2Substituting this value of y in equation (1), we gety^2 + d^2/4 = (kd/12c)This is the equation of a circle with center (0, d/2) and radius sqrt((kd/12c) - d^2/4).The point of minimum concentration lies on the line joining the two smokestacks at a distance of d/2 from each stack. Hence, the point of minimum concentration is the midpoint of the line joining the two stacks.

Therefore, the point on the line joining the stacks where the concentration of the deposit is a minimum is the midpoint of the line joining the two stacks.

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a hospital director is told that 32% of the treated patients are uninsured. the director wants to test the claim that the percentage of uninsured patients is under the expected percentage. a sample of 160 patients found that 40 were uninsured. determine the p-value of the test statistic. round your answer to four decimal places.

Answers

The p-value of the test statistic is 0.0034.

To determine the p-value of the test statistic, we need to conduct a hypothesis test. Let's define our null and alternative hypotheses:

Null Hypothesis (H0): The percentage of uninsured patients is equal to or greater than 32%.

Alternative Hypothesis (Ha): The percentage of uninsured patients is under 32%.

We can use the sample data to calculate the test statistic, which follows a normal distribution due to the large sample size. The test statistic is calculated using the formula:

\[Z = \frac{\text{(Sample proportion)} - \text{(Expected proportion)}}{\sqrt{\frac{\text{(Expected proportion)} \times (1 - \text{(Expected proportion)})}{\text{(Sample size)}}}}\]

In this case, the sample proportion is 40/160 = 0.25 (number of uninsured patients divided by the sample size). The expected proportion is 0.32, as stated in the problem.

Substituting these values into the formula, we get:

\[Z = \frac{0.25 - 0.32}{\sqrt{\frac{0.32 \times (1 - 0.32)}{160}}}\]

Simplifying the expression gives us\[Z = \frac{-0.07}{\sqrt{\frac{0.32 \times 0.68}{160}}}\]

Calculating the value inside the square root:

[Z = \frac{-0.07}{\sqrt{\frac{0.2176}{160}}}\]

[Z = \frac{-0.07}{0.03374}\]

[Z \approx -2.0724\]

To find the p-value associated with this test statistic, we can consult a standard normal distribution table or use statistical software. The p-value is the probability of obtaining a test statistic as extreme as -2.0724 (in the left tail) under the null hypothesis. From the table or software, we find that the p-value is approximately 0.0034 (rounded to four decimal places).

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Let ƒ (x) = − 1 2 ( ¹ ) ² + 4. Evaluate f(−7). 2 f(-7)= [Number

Answers

The function given is:

ƒ (x) = − 1 2 ( ¹ ) ² + 4

The question asks us to find the value of ƒ (−7),

we substitute x = −7 in the given function to get the answer.

So, ƒ (−7) = − 1 2 ( −7 ) ² + 4ƒ (−7) = − 1 2 × 49 + 4ƒ (−7) = −24.5 + 4ƒ (−7) = −20.5

Hence, ƒ (−7) is equal to -20.5.

We can also see that 2f(-7) = 2 × (-20.5) = -41.

Here are the detailed steps for evaluating ƒ(-7):

Step 1: The function is given as:

ƒ (x) = − 1 2 ( ¹ ) ² + 4

Step 2:

Substitute x = -7 in the function to get the value of ƒ(-7):

ƒ (-7) = - 1 2 ( -7 ) ² + 4ƒ (-7) = - 1 2 × 49 + 4ƒ (-7) = - 24.5 + 4ƒ (-7) = - 20.5

Therefore, ƒ (-7) is equal to -20.5.

Step 3: Calculate 2f (-7) by substituting the value of ƒ (-7)2f (-7) = 2 × ƒ (-7)2f (-7) = 2 × (-20.5)2f (-7) = -41

Thus, 2f (-7) = -41.

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Find the velocity and acceleration in time (x=3), of a particle following the path of the curve:
f(x)=e^{x^{3}} \operatorname{sen}(\sqrt{x}) \ln \left(\frac{1}{x}\right)

Answers

If the particle follows a path of "f(x) = 4t³ - 3t² + 2", then at "x = 3" the acceleration is 66 m/s² and velocity is 90 m/s.

In order to find the velocity and acceleration of a particle following the path of the curve defined by the function f(x) = 4t³ - 3t² + 2, we differentiate the function with respect to time.

Given that x = 3, we can find the velocity and acceleration at that specific point.

Velocity (v) : The velocity of the particle is the derivative of the position function with respect to time (dx/dt).

We find dx/dt when x = 3.

We differentiate f(x) = 4t³ - 3t² + 2 with respect to t:

f'(t) = d/dt [4t³ - 3t² + 2]

f'(t) = 12t² - 6t,

Now, substitute t = 3 into the equation:

v = f'(3) = 12(3)² - 6(3) = 108 - 18 = 90

So, the velocity at x = 3 is v = 90,

Acceleration (a) : The acceleration of particle is derivative of velocity function with respect to time (dv/dt).

We find dv/dt when x = 3.

To find dv/dt, we differentiate v = 90 with respect to time (t):

a(t) = d/dt [12t² - 6t]

a(t) = 24t - 6,

Now, substitute t = 3 into the equation:

a = 24(3) - 6 = 72 - 6 = 66,

So, the acceleration at t = 3 is a = 66,

Therefore, at x = 3, the velocity is 90 m/s and the acceleration is 66 m/s².

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The given question is incomplete, the complete question is

Find the velocity and acceleration in time (x=3), of a particle following the path of the curve : f(x) = 4t³ - 3t² + 2.

) Which of the following is equal to x3?

Answers

Answer:

x3

Step-by-step explanation:

Find The Area Of The Inner Loop Of The Limaçon R=32−34sinθ. Write The Exact Answer. Do Not Round. Find The Value Of Dxdy For The Curve X=4ie8t,Y=E−8t At The Point (0,1). Write The Exact Answer. Do Not Round.

Answers

The area of the inner loop of the Limaçon with the equation r = 32 - 34sinθ is 1536π square units.

To find the area of the inner loop of the Limaçon, we need to determine the limits of integration for the polar angle θ. The inner loop occurs when the radius, r, is negative. Setting r = 0 and solving for θ will give us the boundaries.

32 - 34sinθ = 0

sinθ = 32/34

θ = sin^(-1)(32/34)

The inner loop lies between the angles -θ and θ, where θ = sin^(-1)(32/34).

Now, we can use the formula for finding the area enclosed by a polar curve:

A = (1/2) ∫[θ_1,θ_2] (r^2) dθ

Plugging in the equation for r:

A = (1/2) ∫[-θ,θ] ((32 - 34sinθ)^2) dθ

Simplifying the equation and expanding the square:

A = (1/2) ∫[-θ,θ] (1024 - 2176sinθ + 1156sin^2θ) dθ

To evaluate this integral, we can use standard techniques of integration. However, since we want to provide the exact answer without rounding, it's best to leave the result in terms of π.

After integrating and simplifying the expression, we find:

A = 1536π square units.

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A traingle has the verticies A(1,-3), B(-2,-10), and C(4,-13) What is the length of the perimeter of the traingle?

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A traingle has the verticies A(1,-3), B(-2,-10), and C(4,-13) so, The length of the perimeter of the triangle is √58 + 3√5 + √109.

To find the length of the perimeter of the triangle with vertices A(1, -3), B(-2, -10), and C(4, -13), we need to calculate the distances between these points.

The distance between two points (x1, y1) and (x2, y2) can be calculated using the distance formula:

Distance = √((x2 - x1)² + (y2 - y1)²)

Let's calculate the distances between the vertices:

Distance AB:

x1 = 1, y1 = -3 (coordinates of A)

x2 = -2, y2 = -10 (coordinates of B)

Distance AB = √((-2 - 1)² + (-10 - (-3))²) = √((-3)² + (-7)²) = √(9 + 49) = √58

Distance BC:

x1 = -2, y1 = -10 (coordinates of B)

x2 = 4, y2 = -13 (coordinates of C)

Distance BC = √((4 - (-2))² + (-13 - (-10))²) = √((6)² + (-3)²) = √(36 + 9) = √45 = 3√5

Distance AC:

x1 = 1, y1 = -3 (coordinates of A)

x2 = 4, y2 = -13 (coordinates of C)

Distance AC = √((4 - 1)² + (-13 - (-3))²) = √((3)² + (-10)²) = √(9 + 100) = √109

Now, we can calculate the perimeter by adding up the distances:

Perimeter = AB + BC + AC = √58 + 3√5 + √109

As a result, the triangle's circumference measures √58 + 3√5 + √109.

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A block weighing 90lb rests on a 35 incline. Find the magnitude of the components of the​ block's weight perpendicular and parallel to the incline.
Find the magnitude perpendicular to the incline.
Find the magnitude parallel to the incline

Answers

A block weighing 90lb rests on a 35° incline. Find the magnitude of the components of the​ block's weight perpendicular and parallel to the incline.

Solution:

Here, the given data is:

Weight of the block = 90 lb

The angle of incline = 35°

We need to find the following:

Perpendicular component Parallel component

First, let us draw a diagram of the given scenario:

From the above diagram, we can see that the weight of the block is acting in a direction perpendicular to the incline and a direction parallel to the incline.

Hence, we will consider the given angle of 35° as our reference angle for all calculations.

Let W be the weight of the block.

Then,

W sin θ gives the perpendicular component of the weight.

W cos θ gives the parallel component of the weight.

Using the given data, we get:

W = 90 lbθ = 35°

Perpendicular component,

W sin θ= W sin 35°= 90 lb x sin 35°= 51.83 lb (approx)Therefore, the magnitude of the component of the block's weight perpendicular to the incline is 51.83 lb (approx).

Parallel component,

W cos θ= W cos 35°= 90 lb x cos 35°= 73.39 lb (approx)Therefore, the magnitude of the component of the block's weight parallel to the incline is 73.39 lb (approx).

Hence, we get the following results:

Perpendicular component = 51.83 lb (approx)Parallel component = 73.39 lb (approx)

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Question 28 (3 points) Chillee sold consulting services on account to customer RST for $4,000, terms 1/10, n/30. Which of the following is part of the journal entry? Credit Sales for $4,000. Debit Sales Returns and Allowances for $120. Debit cash $4,000. Debit Accounts Receivable for $3,880.

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Chillee sold consulting services on account to customer RST for $4,000, terms 1/10, n/30.The journal entry would be: Debit: Account Receivable $3,880Debit: Sales Discount $120Credit: Sales $4,000.

Explanation: To record the sale transaction, the company will debit account receivable to record the amount which is due from the customer. RST has a 10-day period to make the payment so the company will record a discount of $120 as sales discount. The discount was calculated using the formula: Discount = Total sale x discount rate Discount = $4,000 x 1%Discount = $40Discount as a percentage of sale = $40/$4,000 = 1%.Therefore, Sales discount is debited with $120.Credit sales with $4,000.The balance of Account Receivable should be $3,880 (4,000-120), so it will be debited with $3,880.

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Solve the initial value problem. X′=[21−5−2]X,X(0)=[−12]X(t)X(t)X(t)X(t)=[−9cost−8sint2cost−5sint]=[−6cost−7sint2cost−5sint]=[cost+12sint2cost+5sint]=[−cost−12sint2cost−5sint]

Answers

The solution to the initial value problem is:

X(t) = [-cos(t) - 12sin(t);

-2cos(t) - 5sin(t);

cos(t) + 12

To solve the initial value problem X' = [2 1 -5; -3 0 1; 1 -2 4]X, X(0) = [-1; 2; 3], we can use the matrix exponential function:

X(t) = e^(At)X(0)

where A is the coefficient matrix given by the system of differential equations.

First, we need to find the eigenvalues and eigenvectors of matrix A:

| 2 -1  5 |   | x |   | λx |

|-3  0 -1 | * | y | = | λy |

| 1 -2  4 |   | z |   | λz |

Expanding the determinant gives us the characteristic polynomial:

(2-λ)(-4+λ)(-1+λ) + 5(-3+λ) - (-1)(-6+λ)(-4+λ) = 0

Simplifying this equation yields the cubic polynomial:

λ^3 - 6λ^2 + 9λ - 4 = 0

Factoring this polynomial, we get:

(λ - 1)^2 (λ - 4) = 0

So the eigenvalues are λ = 1 (with algebraic multiplicity 2) and λ = 4.

For the eigenvectors corresponding to λ = 1, we solve the system:

(2-1)x - y + 5z = 0

-3x + 0y - z = 0

x - 2y + 4z = 0

This gives us the solution x = z, y = 2z. So a possible eigenvector is [1; 2; 1]. Another one can be found using the fact that the eigenvectors corresponding to a repeated eigenvalue must be linearly independent. We can solve for another eigenvector, say [a; b; c], by solving the system:

(2-1)a - b + 5c = 0

-3a + 0b - c = 0

a - 2b + 4c = 0

This gives us the solution a = 5c, b = 2c. So another possible eigenvector is [5; 2; 1].

For the eigenvector corresponding to λ = 4, we solve the system:

-2x - y + 5z = 0

-3x - 4y + z = 0

x - 2y + 0z = 0

This gives us the solution x = 2z, y = z. So a possible eigenvector is [2; 1; 0].

Using these eigenvectors, we can construct the matrix P whose columns are the eigenvectors and the diagonal matrix D whose diagonal entries are the eigenvalues (in the same order as the corresponding eigenvectors). Then we have A = PDP^(-1).

P = [1 5 2; 2 2 1; 1 1 0]

D = [1 0 0; 0 1 0; 0 0 4]

We can then write X(t) as:

X(t) = e^(At)X(0)

= Pe^(Dt)P^(-1)X(0)

where e^(Dt) is the diagonal matrix with entries e^(λt) on the diagonal.

e^(Dt) = [e^t 0 0; 0 e^t 0; 0 0 e^(4t)]

So we get:

X(t) = [1 5 2; 2 2 1; 1 1 0] [e^t 0 0; 0 e^t 0; 0 0 e^(4t)] [2 -1 -1; 1 2 -1; -1 -3 3] [-1; 2; 3]

Evaluating this expression, we get:

X(t) = [-cos(t) - 12sin(t) 2cos(t) + 5sin(t) 6cos(t) + 7sin(t);

-2cos(t) - 5sin(t) cos(t) + 12sin(t) -2cos(t) - 5sin(t);

cos(t) + 12sin(t) -2cos(t) - 5sin(t) 2cos(t) + sin(t)]

Therefore, the solution to the initial value problem is:

X(t) = [-cos(t) - 12sin(t);

-2cos(t) - 5sin(t);

cos(t) + 12

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9. The domain of \( f(t) \) is \( [-10,10] \), and its range is \( [-3,2] \). What are the domain and range of a. \( f(2 t) \) b. \( f\left(\frac{t}{2}\right) \) c. \( 0.2 f(t)+3 \) d. \( 0.2f(-2t+2)+3

Answers

The domain and range of the given functions based on the domain and range of f(t) is:

a. Domain: [−5,5], Range: [−3,2]

b. Domain: [−5,5], Range: [−3,2]

c. Domain: [−10,10], Range: [2.4,3.4]

Here, we have,

Let's determine the domain and range of the given functions based on the domain and range of f(t).

a. For f(2t), we substitute t with 2t in the original function f(t).

The domain of f(2t) will be the set of values that t can take in the original domain [−10,10].

Therefore, the domain of f(2t) is [−10/2,10/2] or [−5,5].

The range of f(2t) will be the same as the range of f(t) since we are only scaling the input variable.

So, the range of f(2t) remains as [−3,2].

b. For f( t/2), we substitute t with t/2 in the original function f(t).

The domain of f(t/2) will be the set of values that t can take in the original domain [−10,10] divided by 2.

Therefore, the domain of f(t/2) is [−10/2,10/2] or [−5,5].

The range of f(t/2) remains the same as the range of f(t), which is [−3,2].

c. For 0.2f(t)+3, the domain will remain the same as the domain of f(t), which is [−10,10].

The range of 0.2f(t)+3 can be determined by considering the range of f(t) and applying the given transformation.

Since f(t) has a range of [−3,2], multiplying it by 0.2 scales the range vertically, and adding 3 shifts the range upward.

So, the range of 0.2f(t)+3 will be

[0.2(−3)+3,0.2(2)+3] or [2.4,3.4].

d. For 0.2f(−2t+2)+3, let's analyze the transformations.

The domain remains the same as the domain of f(t), which is [−10,10].

The given transformation involves multiplying the input variable by -2, shifting it by 2 units to the right, multiplying the function value by 0.2, and shifting the range upward by 3 units.

Since the original function f(t) has a range of [−3,2], applying these transformations will scale and shift the range accordingly.

The new range of 0.2f(−2t+2)+3 will be the transformed range [0.2(−3)+3,0.2(2)+3] or [2.4,3.4].

To summarize:

a. Domain: [−5,5], Range: [−3,2]

b. Domain: [−5,5], Range: [−3,2]

c. Domain: [−10,10], Range: [2.4,3.4]

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When Hannah started at UWB, she had 10 credits from taking AP classes. Hannah finished her degree after 4 years. To earn her degree, she had to acculumate 180 credits. Let C = g(y) give the number of credits, C, that Hannah still needed to earn after attending UWB for y years. a. Calculate g(0). Include units in your answer. b. Calculate g(4). Include units in your answer. c. Calculate the average rate of change in C = g(y) from y = 0 to y = 4. Include units in your answer.

Answers

The average rate of change in C = g(y) from y = 0 to y = 4 is -42.5 credits/year.

(a) To calculate g(0), we need to determine the number of credits Hannah still needed to earn after attending UWB for 0 years. Since she had 10 credits from taking AP classes, the number of credits she still needed to earn initially is:

C = 180 (total required credits) - 10 (credits from AP classes) = 170 credits.

Therefore, g(0) = 170 credits.

(b) To calculate g(4), we need to determine the number of credits Hannah still needed to earn after attending UWB for 4 years. Since she finished her degree after 4 years, the number of credits she still needed to earn is 0. Hence, g(4) = 0 credits.

(c) To calculate the average rate of change in C = g(y) from y = 0 to y = 4, we need to find the change in credits over the given time interval and divide it by the length of the interval. In this case, the interval is 4 years.

Change in credits = g(4) - g(0) = 0 - 170 = -170 credits.

Length of the interval = 4 years.

Average rate of change = Change in credits / Length of the interval = -170 credits / 4 years = -42.5 credits/year.

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Complete each of the following statements using the words "greater than", "less than" or "equal to" a) The cardinality of the natural numbers is the cardinality of the positive rational numbers. b) The cardinality of the real numbers on the interval (0,1) is the cardinality of the natural numbers. c) The cardinality of the natural numbers is the cardinality of the rational numbers. d) The cardinality of the even numbers is the cardinality of the natural numbers. e) The cardinality of the real numbers is the cardinality of the natural numbers. f) The cardinality of the integers is the cardinality of the real numbers.

Answers

a) The cardinality of the natural numbers is the cardinality of the positive rational numbers. Equal to The set of natural numbers and the set of positive rational numbers are both countably infinite,

which means that they have the same cardinality. This can be shown by constructing a bijection between the two sets.

b) The cardinality of the real numbers on the interval (0,1) is the cardinality of the natural numbers.

Less than

The set of real numbers on the interval (0, 1) is uncountably infinite, which means that it has a larger cardinality than the set of natural numbers. This can be shown by using Cantor's diagonal argument.

c) The cardinality of the natural numbers is the cardinality of the rational numbers.

Equal to

The set of natural numbers and the set of rational numbers are both countably infinite, which means that they have the same cardinality. This can be shown by constructing a bijection between the two sets.

d) The cardinality of the even numbers is the cardinality of the natural numbers.

Equal to

The set of even numbers is a subset of the set of natural numbers, so it has the same cardinality.

e) The cardinality of the real numbers is the cardinality of the natural numbers.

Greater than

The set of real numbers is uncountably infinite, which means that it has a larger cardinality than the set of natural numbers. This can be shown by using Cantor's diagonal argument.

f) The cardinality of the integers is the cardinality of the real numbers.

Equal to

The set of integers is countably infinite, which means that it has the same cardinality as the set of real numbers. This can be shown by constructing a bijection between the two sets.

The cardinality of a set is a measure of its size. Two sets have the same cardinality if there exists a bijection between them. A bijection is a function that maps each element of one set to a unique element of the other set, and vice versa.

Countably infinite sets are sets that can be put into one-to-one correspondence with the set of natural numbers. Uncountably infinite sets are sets that cannot be put into one-to-one correspondence with the set of natural numbers.

Cantor's diagonal argument is a proof that the set of real numbers is uncountably infinite. The argument goes as follows:

Assume that the set of real numbers is countably infinite.Construct a real number that is not in the set.This contradicts the assumption that the set is countably infinite.

Therefore, the set of real numbers must be uncountably infinite

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40 paired data samples are graphed and show a linear trend. The regression equation is given by y-0.25x-7.94. Given-alpha-0.01, which r-value below represents a significant linear relationship between x and y? Select one O a *0.312 Obr-0375 Oct 0.401 O.d. F-0.418

Answers

Among the given r-values, only *0.312 represents a significant linear relationship between x and y at the alpha level of 0.01. The correct option is a.

To determine the r-value representing a significant linear relationship between x and y, we need to compare it with the critical value of r at the given significance level (alpha = 0.01). The critical value of r depends on the degrees of freedom and the chosen alpha level.

Since we have 40 paired data samples, the degrees of freedom (df) will be 40 - 2 = 38 (n - 2 for paired data).

Looking up the critical value of r for df = 38 and alpha = 0.01 in a statistical table or using software, we find that the critical value is approximately 0.312.

Among the given r-values, only *0.312 is less than the critical value of 0.312. Therefore, the r-value *0.312 represents a significant linear relationship between x and y at the alpha level of 0.01.

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Find the length of the curve traced by the following vector function on the indicated interval. r(t) = est cos 4ti + est sin 4t j + est k; 0 ≤ t ≤ 2π Problem #5: Just Save Problem #5 Your Answer: Your Mark: Enter your answer symbolically, as in these examples Submit Problem #5 for Grading Attempt #1 Attempt #2 Attempt #3 Attempt #4 Attempt #5

Answers

The length of the curve traced by the vector function r(t) = est cos 4ti + est sin 4t j + est k on the interval [0, 2π] is (1/6)(308^(3/2) - 8).

The length of the curve traced by the vector function r(t) = est cos 4ti + est sin 4t j + est k on the interval [0, 2π] is given below:

To determine the length of the curve traced by the vector function r(t) = est cos 4ti + est sin 4t j + est k on the interval [0, 2π], the following steps should be taken:

Step 1: Compute the derivative of r(t)First, we need to compute the derivative of r(t) using the chain rule as follows:r'(t) = (sest cos 4ti - 16sint est sin 4t i) + (sest sin 4t i + 16cost est cos 4ti j) + sest k

Step 2: Find the magnitude of r'(t) The magnitude of r'(t) can be found by taking the square root of the sum of the squares of its components. Thus:r'(t) = sqrt[(sest cos 4ti - 16sint est sin 4t)² + (sest sin 4t + 16cost est cos 4ti)² + (sest)²]r'(t) = sqrt[2s²e² + 256s²]r'(t) = sqrt[(2s² + 256)s²]r'(t) = s*sqrt(2s² + 256)

Step 3: Integrate the magnitude of r'(t) The length of the curve is given by the integral of the magnitude of r'(t) over the interval [0, 2π]. Thus:L = ∫₀²π s√(2s² + 256) dtLet u = 2s² + 256.

Then du/ds = 4s and ds = du/4s. Substituting, we get:L = ∫₃⁰⁸ (1/4)√u duL = (1/4)[(2/3)u^(3/2)]₃⁰⁸L = (1/6)(308^(3/2) - 8)

Therefore, the length of the curve traced by the vector function r(t) = est cos 4ti + est sin 4t j + est k on the interval [0, 2π] is (1/6)(308^(3/2) - 8).

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A circular plate has circumference 30. 1 inches. What is the area of this? plate? Use 3. 14 for pi

Answers

Answer:

A = 72.134554140127 in²

Rounded to the nearest tenth: A = 72.1 in²

Step-by-step explanation:Circumference = 2πr

30.1 = 2πr
> divide by 2 on both sides

15.05 = πr
> divide by π (3.14) on both sides

4.7929936305732... = r
> Radius = 4.7929936305732...

Area of a circle = πr²

A = π(4.7929936305732...)²
> Substitute your radius for r

A = π(4.7929936305732...)²
> use PEMDAS or BEDMAS. Do exponents before multiplying π (3.14)

A = π(22.472787942715)

> Multiply your new number by π (3.14)

A = 72.134554140127 in²

> Round to the nearest tenth as the circumference is rounded to the nearest tenth

A = 72.1 in²

Use backward difference approximation of O(h) to estimate the first derivative of f(x) = x² cos x at x = 0.4, h = 0.1. O 0.667080 O 0.674542 O 0.613900 O 0.720260

Answers

The correct option is O 0.720260.

The given function is f(x) = x² cos x.We need to estimate the first derivative of the given function using backward difference approximation of O(h) at x = 0.4 and h = 0.1.

Backward difference approximation of O(h) is given as:f'(x) ≈ (f(x) - f(x - h))/hWe are given x = 0.4 and h = 0.1.Substitute these values in the above formula.f'(0.4) ≈ (f(0.4) - f(0.3))/0.1We need to find f(0.4) and f(0.3).f(0.4) = (0.4)² cos(0.4) ≈ 0.14472f(0.3) = (0.3)² cos(0.3) ≈ 0.07405Substitute these values in the formula to get:f'(0.4) ≈ (0.14472 - 0.07405)/0.1≈ 0.72670,

the estimated value of the first derivative of the given function at x = 0.4 using backward difference approximation of O(h) is 0.72670. Hence, the correct option is O 0.720260.

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Write the first three terms of the sequence. an​=(3n−4​)/(n²+4) The first three terms are a1​=,a2​=, and a3​= (Simplify your answers. Type integers or fractions.)

Answers

The first three terms of the sequence are:

\(a_1 = \frac{-1}{5}\)

\(a_2 = \frac{1}{4}\)

\(a_3 = \frac{5}{13}\)

To find the first three terms of the sequence given by \(a_n = \frac{3n - 4}{n^2 + 4}\), we substitute the values of \(n\) into the formula:

For \(n = 1\):

\(a_1 = \frac{3(1) - 4}{(1)^2 + 4} = \frac{-1}{5}\)

For \(n = 2\):

\(a_2 = \frac{3(2) - 4}{(2)^2 + 4} = \frac{2}{8} = \frac{1}{4}\)

For \(n = 3\):

\(a_3 = \frac{3(3) - 4}{(3)^2 + 4} = \frac{5}{13}\)

Therefore, the first three terms of the sequence are:

\(a_1 = \frac{-1}{5}\)

\(a_2 = \frac{1}{4}\)

\(a_3 = \frac{5}{13}\)

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Write an equation for a parabola that opens to the left, with vertex (i0. 2) and passes through \( (-6,-4) \). Hence sketch the graph.

Answers

The equation of the parabola that opens to the left, with vertex (0, 2) and passing through (-6, -4), is x² = 6y - 12.

To write the equation of a parabola that opens to the left, we start with the standard form equation of a parabola:

(x - h)^2 = 4p(y - k)

Where (h, k) represents the vertex of the parabola and p is the distance from the vertex to the focus (in this case, p is positive since the parabola opens to the left).

Provided that the vertex is (0, 2), we have h = 0 and k = 2.

So far, our equation becomes:

x^2 = 4p(y - 2)

To determine the value of p, we use the fact that the parabola passes through the point (-6, -4).

Substituting these coordinates into the equation, we get:

(-6)^2 = 4p(-4 - 2)

36 = -24p

Solving for p, we obtain:

p = -36/(-24) = 3/2

Now, we can substitute the value of p back into the equation to get the final equation of the parabola:

x^2 = 4(3/2)(y - 2)

x^2 = 6(y - 2)

x^2 = 6y - 12

So, the equation of the parabola that opens to the left, with vertex (0, 2) and passing through (-6, -4), is x^2 = 6y - 12.

To sketch the graph, we plot the vertex (0, 2) and the point (-6, -4), and then draw the parabolic curve that opens to the left.

The graph will be symmetric with respect to the y-axis.

Here is the sketch of the graph:

        |

    *   |

 *      |

        |    *

        | *    

        |        

------------------------------

The vertex is at (0, 2) and the point (-6, -4) lies on the parabola.

The graph opens to the left and curves upward.

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The resulting pain due to pleural fluid being unable to prevent friction between opposing pleura surfaces is known as which statements are true regarding aircraft engine propulsion? 1- an engine driven propeller imparts a relatively small amount of acceleration to a large mass of air. 2- turbojet and turbofan engines impart a relatively large amount of acceleration to a smaller mass of air. 3- in modern turboprop engines, nearly 50 percent of the exhaust gas energy is extracted by turbines to drive the propeller and compressor with the rest providing exhaust thrust. group of answer choices 1, 2, 3. 1, 2. 1, 3. Use De Moivre's Theorem to find \( (4 \sqrt{3}+4 i)^{3} \). Put your answer in standard form. "Last year, the TIPS has Par value = 1000 and interest rate=2%.What is the interest payment this year if inflation rate is 1%.Question 1 options: 22.2 24.4 20.2 25.1" Explain the role of and where to use RTO and RPO. Provide at least one example scenario that demonstrates RTO and RPO principles. If Alert, Canada is located at about 82oN and Quito, Columbia islocated at 0o, what is the difference in insolation in Januarybetween these two locations? On January 1, 2022, Lopez Corp. enters into a six year lease for constructionequipment. The equipment has a ten year useful life. The lease transfersownership of the equipment to Lopez at the end of the lease term, andLopez appropriately classifies it as a finance lease. Lopez customarilydepreciates similar assets on a straight line basis with no salvage value.The present value of the minimum lease payments is $241,000 at inception,and the first payment of $50,000 is made on January 1, 2022. How muchamortization expense does Lopez report on its 2022 income statement? Fill in the gaps with the correct form of the verbs in brackets in the past simple Stuart many biological macromolecules undergo a transition called denaturation. denaturation is a process whereby a structured, biologically active molecule, called the native form, unfolds or becomes unstructured and biologically inactive. the equilibrium reaction is: Mandela.............(be) among the first to advocate armed resistance to apartheid going underground in 1961 to form the ANC's armed wing.He...........(leave) South Africa and ............(travel) the continent and Europe, studying guerrilla warfare and building support for the ANC.Branded a terrorist by his enemies,Mandela...........(sentence)to life imprisonment in 1964,isolated from millions of his countrymen as they...........(suffer) oppression,violence and forced resettlement under the aparthied regime of racial segregation.He..........(imprison) on Robben island,a penal colony of cape town, where he..........(spend)the next 18 years before being moved to mainland prisons. A gasoline distributor wonders whether an individuals income level influences the grade ofgasoline purchased. The following is a contingency table from a random sample of 300individuals.PersonalType of GasolineAnnual IncomeRegularPremiumPremium PlusLess than $30,000901020$30,000 or More606060Conduct a chi-square test of independence and answer the following question.Using a = .01, appropriate decision is ______________.do not reject the null hypothesis and conclude the two variables are not independentreject the null hypothesis and conclude the two variables are not independentdo nothingreject the null hypothesis and conclude the two variables are independentdo not reject the null hypothesis and conclude the two variables are independent 5. How do paragraphs 37-38 contribute to the overallstory?O A. They suggest that Yevgeny and Seryozha do nothave a close relationship as father and son, andYevgeny is realizing the emotional distance.O B. They show how Seryozha is too young tocomprehend the seriousness of Yevgeny's pointsand his attempts at discipline are fruitless.O C. They reveal that Seryozh is pretending not tounderstand his father's argument, so as to havean excuse to continue his negative behavior.D. They emphasize the irony of themiscommunication between Yevgeny and his son,as Yevgeny assumes Seryozha "does not regard...[his] arguments as serious." The Earths crust, lower lithosphere, and asthenosphere are thin in comparison to deeper zones of the Earth (mesosphere, outer core and inner core). Textbooks commonly exaggerate the outer zone thicknesses, for clarity on page-sized illustrations. Using a millimeter ruler and compass with a very fine pencil, draw the whole Earth cross section at a scale of 1:100,000,000 (1cm = 1000 km). Illustrate the following boundaries exactly to scale, using solid lines to indicate changes in chemistry and dashed lines to indicate changes in mechanical properties, at the depths indicated: oceanic Moho at 12 km; continental Moho at 35 km; transition from lithosphere to asthenosphere at 150 km bottom of very soft asthenosphere at 350 km top of hard mesosphere at 700 km top of core mantle boundary at 2900 km outer core/ inner core boundary at 5100 km center of Earth at 6300 km Please explain how we have to draw this? which of the following were goals of the missionaries that came to washington in the early 1800s? (select all that apply). group of answer choices to give instruction about health care, farming, reading, and writing to settlers. to create christian outposts for the settlers who wanted churches and schools. to bring their religious beliefs to the native americans and try to convert them. to learn indigenous languages from the native peoples of washington and record them. The time it takes to fly from Los Angeles to New York varies inversely as the speed of the plane. If the trip takes 6 hours at 900 km/h, how long would it take at 800 km/h? whats the market map and customers of any hospital under variable costing, fixed manufacturing overhead: group of answer choices is considered a product cost and, therefore, is part of cost of goods sold when inventory is sold. is considered a period cost and, therefore, expensed immediately. is allocated to production using traditional costing. is treated the same as under absorption costing. Which of the following acids will not dissociate completely in water? Pick only one.HClHClO4HClOHNO3 Go language - Write a function in go that calculates the area of a circle in Go. The radius can be an int or float32. Show how you would call your function in main and print out the area of the circle.