witch is ITTTTTTTTTTTTT

Witch Is ITTTTTTTTTTTTT

Answers

Answer 1

Answer:

B) 0.050

Step-by-step explanation:

When you continuously add 0's to the end, it will come out to the same value.  If you were to add a 0 to 0.05, it will become 0.050, which is B.

Hope this helps!


Related Questions

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Find the area bound by the lines \( x=-4 \) and \( x=5 \) and the curves \( y=\sqrt{x+4} \) and \( y=\cos \left(\frac{\pi}{2} x\right)-2 \).

Answers

The area bound by the lines and the curves is 0.29 square units.

To find the area bound by the lines x = -4 and x = 5 and the curves y = √(x + 4) and y = cos(πx/2 - 2), we need to calculate the definite integral of the curves within the given interval and then find the difference between the two areas.

Let's start by finding the points of intersection between the curves:

√(x + 4) = cos(πx/2 - 2)

To solve this equation, we can square both sides and simplify:

x + 4 = cos²(πx/2 - 2)

x + 4 = (1/2)(1 + cos(2πx - 4π))

2(x + 4) = 1 + cos(2πx - 4π)

2x + 8 = 1 + cos(2πx)cos(4π) + sin(2πx)sin(4π)

2x + 8 = 1 + cos(2πx)

Now, we have a transcendental equation. We can solve it graphically or using numerical methods. The solutions are approximately x = -2.35 and x = 4.68.

Now, we can calculate the area under the curve y = √(x + 4) from x = -4 to x = -2.35 and the area under the curve y = cos(πx/2 - 2) from x = -2.35 to x = 4.68.

First, let's calculate the area under y = √(x + 4):

A₁ = ∫[x=-4 to -2.35] √(x + 4) dx

To find the antiderivative of √(x + 4), we can use the power rule of integration:

∫ √(x + 4) dx = (2/3)(x + 4)^(3/2)

Now, let's calculate the definite integral:

A₁ = [(2/3)(x + 4)^(3/2)] [from x = -4 to x = -2.35]

≈ 2.13

Next, let's calculate the area under y = cos(πx/2 - 2):

A₂ = ∫[x=-2.35 to 4.68] cos(πx/2 - 2) dx

To find the antiderivative of cos(πx/2 - 2), we can use the integral of cosine function formula:

∫ cos(ax + b) dx = (1/a)sin(ax + b)

Using this formula, the antiderivative is:

∫ cos(πx/2 - 2) dx = (2/π)sin(πx/2 - 2)

Now, let's calculate the definite integral:

A₂ = [(2/π)sin(πx/2 - 2)] [from x = -2.35 to x = 4.68]

≈ 1.84

Finally, we can find the area bound by the curves:

Area = |A₂ - A₁| = |1.84 - 2.13| = 0.29

Therefore, the area bound by the lines x = -4 and x = 5 and the curves y = √(x + 4) and y = cos(πx/2 - 2) is approximately 0.29 square units.

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The line plot displays the number of roses purchased per day at a grocery store.

A horizontal line starting at 1 with tick marks every one unit up to 10. The line is labeled Number of Rose Bouquets, and the graph is titled Roses Purchased Per Day. There is one dot above 1 and 10. There are two dots above 6, 7, and 9. There are three dots above 8.

Which of the following is the best measure of center for the data, and what is its value?

A. The mean is the best measure of center, and it equals 8.
B. The median is the best measure of center, and it equals 7.3.
C. The mean is the best measure of center, and it equals 7.3.
D. The median is the best measure of center, and it equals 8.

Answers

The best measure of center for the data is the median, and its value is 7.

Hence, the correct answer is:

B. The median is the best measure of center, and it equals 7.

To determine the best measure of center for the given data, we should consider the shape and distribution of the data points on the line plot.

Looking at the line plot, we can observe that the data is not symmetrically distributed.

The number of rose bouquets purchased per day ranges from 1 to 10, and there are varying frequencies for each value.

In this case, the best measure of center would be the median.

The median represents the middle value when the data is arranged in ascending or descending order.

Based on the line plot, we can see that the median would be the value that separates the data into two equal halves.

Counting the number of data points, we have a total of 19 data points. The middle value would be the 10th data point.

Looking at the line plot, the 10th data point corresponds to the value of 7.

Therefore, the best measure of center for the data is the median, and its value is 7.

Hence, the correct answer is:

B. The median is the best measure of center, and it equals 7.

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Cuál es el valor principal de sin−1(1)?​

Answers

The maximum value of the sine function is 1, the angle corresponding to sin^(-1)(1) is π/2 or 90 degrees.

The principal value of sin^(-1)(1) is π/2 or 90 degrees.

The function sin^(-1)(x), also known as arcsin(x) or inverse sine, represents the angle whose sine is equal to x. In this case, we are looking for the angle whose sine is 1.

Since the sine function oscillates between -1 and 1, the angle corresponding to sin^(-1)(1) is the maximum value where the sine is equal to 1.

This occurs at π/2 or 90 degrees, making it the principal value for sin^(-1)(1).

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I WILL MARK
Q. 16
Given f (x) = x2 + 2x – 5 and values of the linear function g(x) in the table, what is the range of (f + g)(x)?


x –6 –3 –1 4
g(x) 16 10 6 –4

A. (–∞, –1]
B. [–1, ∞)
C. [–1, 1]
D. ℝ

Answers

Answer:

D

Step-by-step explanation:

To find the range of the function (f + g)(x), we need to evaluate the sum of f(x) and g(x) for each x value given in the table.

Given data:

f(x) = x^2 + 2x - 5

x: -6, -3, -1, 4

g(x): 16, 10, 6, -4

To find (f + g)(x), we substitute the x values into f(x) and g(x) and add them together:

For x = -6:

(f + g)(-6) = f(-6) + g(-6) = (-6)^2 + 2(-6) - 5 + 16 = 36 - 12 - 5 + 16 = 35.

For x = -3:

(f + g)(-3) = f(-3) + g(-3) = (-3)^2 + 2(-3) - 5 + 10 = 9 - 6 - 5 + 10 = 8.

For x = -1:

(f + g)(-1) = f(-1) + g(-1) = (-1)^2 + 2(-1) - 5 + 6 = 1 - 2 - 5 + 6 = 0.

For x = 4:

(f + g)(4) = f(4) + g(4) = (4)^2 + 2(4) - 5 - 4 = 16 + 8 - 5 - 4 = 15.

The range of (f + g)(x) is the set of all possible outputs for the function. By evaluating (f + g)(x) for each x value, we have the following results:

(f + g)(-6) = 35

(f + g)(-3) = 8

(f + g)(-1) = 0

(f + g)(4) = 15

The range is the set of all these output values, which are {35, 8, 0, 15}. Thus, the range of (f + g)(x) is D. ℝ, which represents all real numbers.

Solve the given initial value problem. Write your final answer as a piece-wise defined function. Note that in some books, δ c

(x) is written as δ(x−c). y ′′
−2y ′
+5y=2δ 2π

(x);y(0)=1,y ′
(0)=−3

Answers

Given Initial Value Problem: Let's find the solution of the given initial value problem using Laplace transform.

Taking Laplace transform on both sides of the given differential equation, Taking Inverse Laplace transform, Now, we find inverse Laplace transform using partial fraction .

Differentiating the above expression with respect to s, and then putting hence, the solution is incorrect.Therefore, the solution of the given initial value problem using Laplace transform .

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In a video game currency system: A copper = 1 6 is represented by a silver and 2 coppers A silver is worth one fourth of a gold What is the value in game currency of two gold and two silver divided by one silver and on copper? FORMAT xc, ys, zg. so 0 copper, 1 silver, 1 gold would be 0c, 1s, 1g

Answers

According to the video game money system, copper = 1, 6, silver = 2, and silver is worth one-fourth of gold. As a result, the format is 13g, 1s, 3c.

To discover the worth of two gold and two silver split by one silver and one copper in-game money, we must convert them to the same unit. One silver equals two copper.

So, we can write the value of silver in terms of copper as follows:

1 silver = 2 copper

4 silver = 8 copper

1 gold = 4 silver = 8 * 4 copper = 32 copper

Then, the value of two gold and two silver in copper is (2 * 32 + 2 * 4) copper = 68 copper.

In copper, the value of one silver and one copper equals (1 * 2 + 1 * 1) copper = 3 Copper.

Now, we can find the value of two gold and two silver divided by one silver and one copper as follows:

(2g + 2s) ÷ (1s + 1c)= (2g + 2s) ÷ (2c + 1s)=

(2 × 32 + 2 × 4) ÷ (2 × 2 + 1)= 68 ÷ 5= 13 remainder 3

So, the value in-game currency of two gold and two silver divided by one silver and one copper is 13g, 1s, 3c. Therefore, the answer is 13g, 1s, 3c.

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When a 25.0 mL sample of a 0.306M aqueous hypochlorous acid solution is titrated with a 0.378M aqueous potassium hydroxide solution, what is the pH after 30.4 mL of potassium hydroxide have been added? FH=

Answers

The pH of the solution is 12.33.

The balanced equation for the titration reaction is:

HClO(aq) + KOH(aq) → KCl(aq) + H2O(l)

We are given that the initial volume of the hypochlorous acid solution is 25.0 mL and the concentration of the hypochlorous acid solution is 0.306M. We are also given that the volume of the potassium hydroxide solution that has been added is 30.4 mL.

The concentration of the potassium hydroxide solution is 0.378M, so the number of moles of potassium hydroxide added is:

moles KOH = concentration * volume = 0.378M * 30.4mL = 11.512mmol

The number of moles of hypochlorous acid in the initial solution is:

moles HClO = concentration * volume = 0.306M * 25.0mL = 7.65mmol

Since the number of moles of potassium hydroxide added is greater than the number of moles of hypochlorous acid, the reaction will go to completion and all of the hypochlorous acid will be converted to potassium chloride.

The pH of the solution after the reaction is complete will be determined by the concentration of the potassium hydroxide. The concentration of the potassium hydroxide is:

concentration KOH = moles KOH / total volume = 11.512mmol / 55.4mL = 0.208M

The pOH of the solution can be calculated as follows:

pOH = -log(concentration KOH) = -log(0.208M) = 1.67

The pH of the solution is then:

pH = 14 - pOH = 14 - 1.67 = 12.33

Therefore, the pH of the solution after 30.4 mL of potassium hydroxide have been added is 12.33.

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1) Using the limit definition of the derivative, ƒ'(x) = lim h→0 find the derivative of ƒ(x) : = 2 x f(x+h)-f(x) h

Answers

Let's start with the given function ƒ(x) = 2 x f(x+h)-f(x) hWe can use the limit definition of the derivative to find the derivative of this function: ƒ'(x) = lim h→0 (ƒ(x + h) - ƒ(x)) / h Therefore, the derivative of ƒ(x) = 2 x f(x+h)-f(x) h is 2f(x).The answer is a one-liner.

Substitute the function given to ƒ(x) = 2 x f(x+h)-f(x) hƒ'(x) = lim h→0 (2(x + h)f(x + h) - 2xf(x + h) - f(x)) / h

Now expand and simplify the numerator: ƒ'(x) = lim h→0 (2xf(x + h) + 2hf(x + h) - 2xf(x + h) - f(x)) / hƒ'(x) = lim h→0 (2hf(x + h) - f(x)) / hƒ'(x) = lim h→0 2f(x + h) - lim h→0 f(x) / h

We know that the second term in this expression is simply the definition of the derivative of ƒ(x) with respect to x. Therefore: ƒ'(x) = 2 lim h→0 f(x + h) - ƒ'(x)Therefore, the derivative of ƒ(x) = 2 x f(x+h)-f(x) h is 2f(x).

The answer is a one-liner.

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Which of the following is not true? Select one or more: a. pure metals cannot have different crystal structures at different temperatures O b. the addition of alloying element to a pure metal can change its crystal structure c. metals can have an amorphous (non-crystalline) structure if cooled sufficiently rapidly O d. metal alloys can have different crystal structures at different temperatures Check

Answers

The statement "pure metals cannot have different crystal structures at different temperatures" is not true (option a).

Pure metals can indeed exhibit different crystal structures at different temperatures. This phenomenon is known as polymorphism or allotropy. Different crystal structures can arise due to changes in atomic arrangement and bonding as temperature varies. For example, iron undergoes a crystal structure transformation from body-centered cubic (BCC) at lower temperatures (alpha iron) to face-centered cubic (FCC) at higher temperatures (gamma iron).

Other metals, such as titanium and zirconium, also exhibit polymorphism. The addition of alloying elements to a pure metal (option b) can indeed change its crystal structure, and metals can exhibit an amorphous structure (option c) if rapidly cooled. Metal alloys (option d) can have different crystal structures at different temperatures due to the influence of composition and cooling rates. Hence, options a, c, and d are all true statements. The correct option is a.

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The position function of a particle moving in a straight line is s= 2t 2
+3
9

where t


is in seconds and s is in meters. Find the velocity of the particle at t=1.

Answers

The velocity of the particle at t=1 will be 4 m/s. Therefore, the velocity of the particle at t=1 will be 4 m/s.

Given, the position function of a particle moving in a straight line is s = 2t² + 3.

To find the velocity of the particle at t=1, we need to find the derivative of the position function with respect to time (t).Position function of the particle: s = 2t² + 3

Taking the derivative with respect to time (t), we get;

v(t) = ds/dtv(t) = d/dt(2t² + 3)v(t) = 4t

Therefore, the velocity of the particle at t=1 will be:

v(1) = 4(1) = 4

Thus, the velocity of the particle at t=1 will be 4 m/s.

Therefore, the velocity of the particle at t=1 will be 4 m/s.

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Describe the given set with a single equation or with a pair of equations. The circle of radius 9 centered at (0,1,0) and lying in a. the xy-plane b. the yz-plane c. the plane y=1 Choose the correct set of points lying in the xy-plane. A. (x−1) 2
+y 2
=81,z=0 B. x 2
+y 2
=81,z=0 C. x 2
+y 2
+z 2
=81,z=0 D. x 2
+(y−1) 2
=81,z=0

Answers

The correct set of points lying in the xy-plane for a circle of radius 9 centered at (0, 1, 0) is option B: [tex]x^2 + y^2 = 81[/tex] and z = 0.

In option B, the equation  [tex]x^2 + y^2 = 81[/tex]  represents a circle in the xy-plane with a radius of 9 (since [tex]9^2 = 81[/tex]). This equation describes all the points (x, y) that are a distance of 9 units away from the origin (0, 0) in the xy-plane. Since the circle is centered at (0, 1, 0), the z-coordinate is fixed at 0 for all points on the circle. Hence, option B, [tex]x^2 + y^2 = 81[/tex] and z = 0, correctly describes the set of points lying in the xy-plane for a circle of radius 9 centered at (0, 1, 0).

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A hollow circular pole 6 meters thick, with 300 mm outside diameter and the height of 3 m weighs 150 N/m. The pole is subjected to the following vertical lad P-3 KN at an eccentricity of 100 mm from the centroid of the section, lateral force H-0.45 kN at the top of the pole. Determine the maximum tensile stress at the base due to vertical and lateral loads.

Answers

To determine the maximum tensile stress at the base of the hollow circular pole due to vertical and lateral loads, we need to consider the combined effect of both loads.

First, let's calculate the area moment of inertia of the section. The moment of inertia (I) of a hollow circular section can be calculated using the formula:

I = (π/64) * (D_outer^4 - D_inner^4)
where D_outer is the outside diameter of the pole and D_inner is the inside diameter of the pole. In this case, the outside diameter is 300 mm, which is equal to 0.3 m, and the inside diameter is 300 mm - 600 mm = -300 mm, which is equal to -0.3 m. However, a negative diameter is not possible, so we can consider the inside diameter as 0.

Therefore, the equation becomes:
I = (π/64) * (0.3^4 - 0^4) = 0.00017259 m^4
Next, let's calculate the maximum tensile stress at the base due to the vertical load.

The maximum tensile stress (σ_v) can be calculated using the formula:
σ_v = (P * e) / I
where P is the vertical load and e is the eccentricity of the load from the centroid of the section.

In this case, P = 3 kN = 3000 N and e = 100 mm = 0.1 m.

Plugging in these values, we get:
σ_v = (3000 * 0.1) / 0.00017259 = 174017.6 N/m^2


Finally, let's calculate the maximum tensile stress at the base due to the lateral load . The maximum tensile stress (σ_h) can be calculated using the formula:
σ_h = (H * (D_outer/2)) / I
where H is the lateral load. In this case, H = 0.45 kN = 450 N.

Plugging in this value, we get:
σ_h = (450 * (0.3/2)) / 0.00017259 = 77900.5 N/m^2


Therefore, the maximum tensile stress at the base due to the vertical load is 174017.6 N/m^2 and the maximum tensile stress at the base due to the lateral load is 77900.5 N/m^2.

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ABCD is a trapezium.
A
D
Calculate the size of the largest angle.
4(2y - 1)
B
30-y
C

Answers

Answer:x = 123.6°

Step-by-step explanation:

Subdivide the trapezium into a rectangle and triangle.

The triangle is a right triangle with hypotenuse CD and height 12.5cm.

The base of the triangle is 24.3 - 16 = 8.3 cm

To find angle D, use the tan trig ratio:

 where  is the angle, O is the side opposite the angle A is the side adjacent the angle.

Therefore, for the right triangle:

= D

O = 12.5

A = 8.3

In a quadrilateral, the sum of the angles between the parallel lines is 180°.  Therefore, m∠C + m∠D = 180°

⇒ x + 56.41573952... = 180

⇒ x = 180 - 56.41573952...

⇒ x = 123.6° (1 dp)

Alternatively, calculate angle C of the right triangle and add it to 90° to find x.

Find the solution \[ t^{\wedge} 2 x^{\prime \prime}-t x^{\prime}-3 x=0 \quad \text { when } x(1)=0, x^{\prime}(1)=1 \]

Answers

The particular solution for the given differential equation is x(t) = 0. This means that the zero function satisfies the given equation and initial conditions


To find the solution, we can use the method of power series. Let's assume the solution can be expressed as a power series:

[tex]\[x(t) = \sum_{n=0}^{\infty} a_n t^n.\][/tex]

Differentiating twice, we find:

[tex]\[x'(t) = \sum_{n=0}^{\infty} n a_n t^{n-1} = \sum_{n=1}^{\infty} n a_n t^{n-1}.\]\\$\[x''(t) = \sum_{n=1}^{\infty} n (n-1) a_n t^{n-2}.\][/tex]

Substituting these expressions into the given differential equation, we get:

[tex]\[t^2 x''(t) - t x'(t) - 3x(t) = \sum_{n=1}^{\infty} n (n-1) a_n t^{n} - \sum_{n=1}^{\infty} n a_n t^{n} - 3 \sum_{n=0}^{\infty} a_n t^{n} = 0.\][/tex]

To obtain a recurrence relation, we equate the coefficients of like powers of t to zero. The term with the lowest power of t is t^0, so we have:

[tex]\[n(n-1) a_n - na_n - 3a_n = 0.\][/tex]

Simplifying this, we find:

[tex]\[(n^2 - 4n) a_n = 0.\][/tex]

For the equation to hold for all n, we must have [tex]\[a_n\][/tex] = 0 for n ≠ 2. The coefficient [tex]\[a_2\][/tex] remains undetermined. Hence, the general solution is:

[tex]\[x(t) = a_2 t^2.\][/tex]

Using the initial conditions x(1) = 0 and x'(1) = 1, we can find the value of [tex]\[a_2\][/tex].

Plugging these values into the equation, we have:

[tex]\[0 = a_2 \cdot 1^2 \implies a_2 = 0.\][/tex]

Therefore, the particular solution is x(t) = 0. The zero function satisfies the given differential equation and initial conditions.

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Solve The Given Differential Equation. Xy′′+Y′=0y(X)=,X>0

Answers

The general solution to the differential equation Xy'' + y' = 0 is y = c1 + c2/X,

To solve the given differential equation, Xy'' + y' = 0, we can use the method of finding a particular solution and a complementary solution.

Let's start by assuming a particular solution of the form y = X^m, where m is a constant to be determined.

Taking the first and second derivatives of y, we have:

y' = mX^(m-1)

y'' = m(m-1)X^(m-2)

Substituting these derivatives back into the differential equation, we get:

X(m(m-1)X^(m-2)) + mX^(m-1) = 0

Simplifying the equation, we obtain:

m(m-1)X^m + mX^m = 0

m(m-1+m)X^m = 0

m(m+1)X^m = 0

Since X > 0, the equation m(m+1)X^m = 0 holds if and only if m = 0 or m = -1.

Case 1: m = 0

If m = 0, then y = X^m = X^0 = 1, which is a constant.

Case 2: m = -1

If m = -1, then y = X^m = X^(-1) = 1/X.

Therefore, the general solution to the differential equation Xy'' + y' = 0 is given by:

y = c1 + c2/X,

where c1 and c2 are constants determined by the initial conditions.

Given the initial condition y(X) = ?, we can substitute the value of X into the general solution and solve for the constants c1 and c2.

Please provide the specific value of y(X) in order to determine the constants and obtain the particular solution.

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Solve the system of equations below by graphing both equations with a pencil and paper. What is the solution? y=x+1 y=-1/2x+4

Answers

The solution to the systems of equations graphically is (6, 7)

Solving the systems of equations graphically

From the question, we have the following parameters that can be used in our computation:

y = x + 1

y = 1/2x + 4

Next, we plot the graph of the system of the equations

See attachment for the graph

From the graph, we have solution to the system to be the point of intersection of the lines

This points are located at (6, 7)

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An unconfined compression test is conducted on a specimen of a saturated sof clay. The specimen is 1.40 in. in diameter and 3.10 in, high. The load indicated by the load transducer at failure is 25.75 pounds and the axial deformation imposed on the specimen at failure is 215 in. It is desired to perform the following tasks: 1.) Plot the total stress Mohr circle at failure; 2.) Calculate the unconfined compressive strength of the specimen, and 3.) Calculate the shear strength of the specimen; and 4.) The pore pressure at failure is measured to be 5.0 psi below atmospheric pressure. plot the effective stress circle for this condition. Document all your work, the right answer without the how you got it will earn zero credit.

Answers

The effective stress is calculated by subtracting the pore pressure from the total stress. In this case, the pore pressure at failure is measured to be 5.0 psi below atmospheric pressure.

1.) To plot the total stress Mohr circle at failure, we need to determine the principal stresses and the maximum shear stress.

To find the principal stresses:
- The total stress at failure is equal to the load indicated by the load transducer, which is 25.75 pounds.
- The area of the specimen can be calculated using the diameter, which is 1.40 inches. The area is equal to πr^2, where r is the radius (diameter/2).
- The axial deformation imposed on the specimen at failure is 215 inches.

Using these values, we can calculate the principal stresses using the formula:
σ1 = (load/area) + (axial deformation/area)
σ2 = (load/area) - (axial deformation/area)

2.) To calculate the unconfined compressive strength of the specimen, we can use the formula:
UCS = load/area

3.) To calculate the shear strength of the specimen, we can use the formula:
Shear strength = 0.5 * UCS

4.) To plot the effective stress circle, we need to determine the effective stress and the pore pressure at failure.

The effective stress is calculated by subtracting the pore pressure from the total stress. In this case, the pore pressure at failure is measured to be 5.0 psi below atmospheric pressure.

To plot the effective stress circle, we can use the effective stress and the same principal stresses obtained earlier.

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Consider the function f(x)=− 4x 2
+1
x

,0≤x≤2 This function has an absolute minimum value equal to: which is attained at x= and an absolute maximum value equal to: which is attained at x=

Answers

Given function is `f(x) = −4x² + 1x, 0 ≤ x ≤ 2`.

We are to find the absolute minimum and maximum value of the function.

Firstly, we will take the derivative of the function with respect to x.

`f(x) = −4x² + 1x, 0 ≤ x ≤ 2

`Differentiating the function `f(x) = −4x² + 1x, 0 ≤ x ≤ 2` with respect to x.

`f'(x) = -8x + 1

`At critical points `f'(x) = 0`-8x + 1

= 0

⟹ -8x = -1

⟹ x = 1/8

The value of x = 1/8 lies in the interval (0, 2).

Now, we need to find the value of the function at x = 0, 1/8, and 2.

f(0) = 1 × 0 - 4 × 0²

= 0

f(1/8) = 1 × 1/8 - 4 × (1/8)²

= -1/64

f(2) = 1 × 2 - 4 × 2² = -14

Since -14 is the smallest value in the set {0, -1/64, -14}

Therefore, the absolute minimum value is -14, which is attained at x = 2

.Absolute maximum value:Similarly, we will find the absolute maximum value of the function.

The derivative of the function `f(x) = −4x² + 1x, 0 ≤ x ≤ 2` with respect to x is `f'(x) = -8x + 1`.

At critical points `

f'(x) = 0`-8x + 1

= 0

⟹ -8x = -1

⟹ x = 1/8

The value of x = 1/8 lies in the interval (0, 2).

Now, we need to find the value of the function at x = 0, 1/8, and 2.

f(0) = 1 × 0 - 4 × 0²

= 0

f(1/8) = 1 × 1/8 - 4 × (1/8)²

= -1/64

f(2) = 1 × 2 - 4 × 2²

= -14

Since 0 is the largest value in the set {0, -1/64, -14}

Therefore, the absolute maximum value is 0, which is attained at x = 0.

Thus, the absolute minimum value is -14, which is attained at x = 2 and the absolute maximum value is 0, which is attained at x = 0.

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"Only set the integral up (Do not do integration by parts). also
add photo of slice of bundt cake used to do the volume by slicing
integral"

Answers

We can set up the integral to find the volume of the slice is ∫[4,5] π(5 - y)² dy

To set up an integral to find the volume of a slice of bundt cake, we first need to determine the cross-sectional area of the slice.

We can do this by cutting the cake horizontally and taking a look at the cross-section.

Let's assume that the slice of cake has a thickness of Δy, and that it is at a distance y from the center of the cake.

We can represent the shape of the slice by a function r(y), which gives the radius of the slice at each value of y.

Then, the cross-sectional area of the slice can be found using the formula for the area of a circle:

πr(y)².

We can set up the integral to find the volume of the slice as follows:

∫[a,b] πr(y)² dy

where a and b are the limits of integration, which depend on the thickness of the slice and the overall size of the cake.

For example, let's say we have a bundt cake with an inner radius of 4 inches, an outer radius of 6 inches, and a height of 3 inches.

We want to find the volume of a slice that is 1 inch thick and located 1 inch from the center of the cake.

Here is a diagram of the slice:

Slice of bundt cake

For this slice, we have:

r(y) = 5 - y (since the radius of the slice is equal to the distance from the center, which is 5 - y)

Δy = 1

a = 4 (since the inner radius of the cake is 4 inches) and b = 5 (since the slice is 1 inch from the center, which has a radius of 5 inches)

Using these values, we can set up the integral to find the volume of the slice:

∫[4,5] π(5 - y)² dy

Note that we only need to set up the integral at this point; we do not need to evaluate it by integration by parts or any other method.

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Determine if the matrix -4 -3 -2 is symmetric 0-2-9 BOD Select the correct choice below and, if necessary, fill in the answer box within your choice. (Simplify your answer.) OA. The matrix is not symmetric because it is not equal to its transpose, which is OB. The matrix is not symmetric because it is not equal to the negative of its transpose, which is OC. The matrix is not symmetric because it is not equal to its inverse, which is OD. The matrix is symmetric because it is equal to its inverse, which is OE. The matrix is symmetric because it is equal to its transpose, which is OF. The matrix is symmetric because it is equal to the negative of its transpose, which is

Answers

The matrix -4 -3 -2 is not symmetric because it is not equal to its transpose, which is  -4 0 and  -3 -2.

The transpose of the matrix is simply found by writing the rows as columns and columns as rows.

For instance, the transpose of -4 -3 -2 is-4 0and -3 -2.

How to determine whether a matrix is symmetric?

In order to determine whether a matrix is symmetric or not, the matrix needs to be square, i.e., the number of columns must be equal to the number of rows.

A matrix is considered symmetric if the number of columns is equal to the number of rows and if the i,jth entry is equal to the j,ith entry.

An equivalent condition is that the matrix is symmetric if it is equal to its transpose.

So, the matrix is not symmetric because it is not equal to its transpose, which is -4 0 and -3 -2, which means that the correct option is OA.

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C nanotubes are graphite sheets rolled up into a cylinder. This material represents one of the "hot" new research topics in chemistry. Some typical nanotubes are shown in Figure . Like the "buckyball" (graphite rolled into a ball) Carbon nanotubes have unique properties that could result in major advances in many fields including semiconductor device design and fabrication. Carbon nanotubes can be up to 70 times stronger than steel and conductivity tailored to its need. From the distance between areas of high intensity in your STM images you can calculate the internal diameter of a Carbon nanotube made up of an integer number of C atoms via the equation: D=(a(m 2
+mn+n 2
) 1n
)/π Where a represents the distance between areas of high intensity in your STM image, and n and m, are integers describing the number of C 6

rings making up the respective nanotube. On the basis of the value you have obtained, define the internal radii of nanotubes made up of 5,6 and 7 rings.

Answers

The equation D = (a([tex]m^{2}[/tex] + mn + [tex]n^2[/tex])[tex]^(^1^/^2^)[/tex])/π defines the internal radii of nanotubes made up of 5, 6 and 7 rings with varied values for n.

Using the equation D = (a([tex]m^{2}[/tex] + mn + [tex]n^2[/tex])[tex]^(^1^/^2^)[/tex])/π, we can calculate the internal diameter (D) of carbon nanotubes. The variables n and m represent integers that describe the number of carbon rings making up the respective nanotube, and a represents the distance between areas of high intensity in the STM image.

To find the internal radii of nanotubes made up of 5, 6, and 7 rings, we substitute the respective values of n and m into the equation and solve for D.

For a nanotube with 5 rings (n = 5, m = 0), the equation becomes:

D = (a([tex]0^2[/tex] + 0(5) + [tex]5^2[/tex])[tex]^(^1^/^2^)[/tex])/π

For a nanotube with 6 rings (n = 6, m = 0), the equation becomes:

D = (a([tex]0^2[/tex] + 0(6) + [tex]6^2[/tex])[tex]^(^1^/^2^)[/tex])/π

For a nanotube with 7 rings (n = 7, m = 0), the equation becomes:

D = (a([tex]0^2[/tex] + 0(7) + [tex]7^2[/tex])[tex]^(^1^/^2^)[/tex])/π

By solving these equations, we can determine the internal radii of carbon nanotubes made up of 5, 6, and 7 rings based on the given values of a.

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A compound contains 40.0%C,6.71%H. and 53.29%O by mass. The molecular weight of the compound is 60.05amu. The molecular formula of this compound contains ____ C atoms,___ H atoms and ___O atoms.

Answers

The molecular formula of the compound is C2H4O2, which means it contains 2 C atoms, 4 H atoms, and 2 O atoms.

The molecular weight of a compound can be used to determine the molecular formula. To find the molecular formula of the compound in question, we can use the given percentages and the molecular weight.

1. Convert the percentages to grams:
  - 40.0% C = 40.0 g C
  - 6.71% H = 6.71 g H
  - 53.29% O = 53.29 g O

2. Determine the number of moles for each element:
  - Moles of C = (40.0 g C) / (12.01 g/mol) = 3.33 mol C
  - Moles of H = (6.71 g H) / (1.01 g/mol) = 6.64 mol H
  - Moles of O = (53.29 g O) / (16.00 g/mol) = 3.33 mol O

3. Divide the number of moles by the smallest number of moles to get the simplest whole number ratio:
  - C:H:O = 3.33 mol C : 6.64 mol H : 3.33 mol O
  - Divide all ratios by 3.33 to get the simplest whole number ratio:
    - C:H:O = 1 : 2 : 1

4. Multiply the subscripts by the simplest ratio to obtain the molecular formula:
  - C:H:O = 1 : 2 : 1
  - Multiply each subscript by 2 to obtain whole numbers:
    - C2H4O2

Therefore, the molecular formula of the compound is C2H4O2, which means it contains 2 C atoms, 4 H atoms, and 2 O atoms.

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Given that x is a random variable having a Poisson distribution, compute the following: (a) P(z=6) when μ=2.5 P(z)= (b) P(x≤4) when μ=1.5 P(x)= (c) P(x>9) when μ=6 P(z)= (d) P(x<7) when μ=5.5 P(x)=

Answers

The probabilities of the events are

P(x = 6) = 0.0278P(x ≤ 4) = 0.9814P(x > 9) = 0.0839P(x < 7) = 0.68604Calculating the probabilities of the events

From the question, we have the following parameters that can be used in our computation:

Poisson distribution

The probability is represented as

[tex]P(x) = \frac{\lambda^x}{x!}e^{-\lambda}[/tex]

So, we have

a) P(z = 6) when μ = 2.5

[tex]P(x = 6) = \frac{2.5^6}{6!}e^{-2.5}[/tex]

Evaluate

P(x = 6) = 0.0278

(b) P(x ≤ 4) when μ = 1.5

[tex]P(x \le 4) = (\frac{1.5^4}{4!}+ \frac{1.5^3}{3!}+ \frac{1.5^2}{2!}+ \frac{1.5^1}{1!}+ \frac{1.5^0}{0!}) *e^{-1.5}[/tex]

Evaluate

P(x ≤ 4) = 0.9814

P(x > 9) when μ = 6

This is calculated as

P(x > 9) = 1 - P(x ≤ 9)

Using a graphing tool, we have

P(x > 9) = 1 - 0.9161

So, we have

P(x > 9) = 0.0839

(d) P(x<7) when μ = 5.5

This is calculated as

P(x < 7) = P(0) + ..... + P(6)

Using a graphing tool, we have

P(x < 7) = 0.68604

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A random sample of 105 automobile owners in a region shows that an automobile is driven on average 23,000 kilometers per year with a standard deviation of 3600 kilometers. Assume the distribution of measurements to be approximately normal. Construct a 95​% prediction interval for the kilometers traveled annually by an automobile owner in the region.

Answers

The  95% prediction interval for the kilometers traveled annually by an automobile owner in the region is 22,303.74 kilometers to 23,696.26 kilometers.

First, let's find the critical value (t) corresponding to a 95% confidence level and 104 degrees of freedom.

We subtract 1 from the sample size (105-1 = 104) to get the degrees of freedom.

So, the critical value for a 95% confidence level and 104 degrees of freedom is 1.984.

Now, Prediction Interval = 23,000 ± 1.984 x (3,600 / √105)

= 23,000 ± 1.984  (3,600 / 10.246)

= 23,000 ± 1.984  351.14

Calculating the range of the prediction interval:

Lower limit = 23,000 - (1.984 x 351.14) = 23,000 - 696.26 = 22,303.74

Upper limit = 23,000 + (1.984 x 351.14) = 23,000 + 696.26 = 23,696.26

Therefore, the 95% prediction interval for the kilometers traveled annually by an automobile owner in the region is 22,303.74 kilometers to 23,696.26 kilometers.

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Use the limit definition of derivatives to compute the derivative of f(x) = −3x² + 2022.

Answers

6. the derivative of the function f(x) = -3x² + 2022 is f'(x) = -6x.

To compute the derivative of the function f(x) = -3x² + 2022 using the limit definition of derivatives, we can follow these steps:

1. Recall the definition of the derivative:

  f'(x) = lim(h->0) [f(x + h) - f(x)] / h

2. Substitute the given function f(x) into the definition:

  f'(x) = lim(h->0) [-3(x + h)² + 2022 - (-3x² + 2022)] / h

3. Simplify the expression inside the limit:

  f'(x) = lim(h->0) [-3(x² + 2xh + h²) + 2022 + 3x² - 2022] / h

        = lim(h->0) [-3x² - 6xh - 3h² + 3x²] / h

4. Combine like terms:

  f'(x) = lim(h->0) [-6xh - 3h²] / h

5. Factor out an h from the numerator:

  f'(x) = lim(h->0) [-h(6x + 3h)] / h

6. Cancel out h from the numerator and denominator:

  f'(x) = lim(h->0) -6x - 3h

        = -6x

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Find the average value of \( f(x, y)=x^{2} y \) over the rectangle \( R \) with vertices \( (-3,0),(-3,8),(2,8),(2,0) \). Answer:

Answers

The average value of f(x, y) = x²y over the rectangle R is -76/15.

How to find the average value of a function?

To find the average value of the function f(x, y) = x²y over the given rectangle R with vertices (-3,0), (-3,8), (2,8), (2,0), we need to calculate the double integral of the function over the rectangle R and then divide it by the area of the rectangle.

The average value (AV) is given by the formula:

AV = (1 / A) * ∬(R) f(x, y) dA,

where A is the area of the rectangle R, and dA represents the differential area element.

1. Calculating the area of the rectangle R:

The length of the rectangle in the x-direction is 2 - (-3) = 5 units.

The length of the rectangle in the y-direction is 8 - 0 = 8 units.

Therefore, the area of the rectangle A = 5 * 8 = 40 square units.

2. Calculating the double integral:

∬(R) f(x, y) dA = ∫²₋₃ ∫⁸₀ (x²y) dy dx.

Integrating with respect to y first:

∫⁸₀ (x²y) dy = x² * [y²/2]∣₀⁸ = 32x².

Now integrating with respect to x:

∫²₋₃ 32x² dx = [32x³/3]∣₋₃² = (32 * 2³/3) - (32 * (-3)³/3) = 256/3 - 288 = -608/3

Calculating the average value:

AV = (1 / A) * ∬(R) f(x, y) dA = (1 / 40) * (-608/3) = -76/15.

Therefore, the average value of f(x, y) = x²y over the rectangle R is -76/15.

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Convert the angle to decimal degrees and round to the nearest hundredth of a degree. \[ 312^{\circ} 24^{\prime \prime} 1^{\prime \prime} \] \( 312.36 \) \( 312.46 \) \( 312.41 \) \( 312.40 \)

Answers

The angle [tex]\[ 312^{\circ} 24^{\prime \prime} 1^{\prime \prime} \][/tex] converts to approximately [tex]\( 312.41 \)[/tex] degrees when rounded to the nearest hundredth.

To convert the given angle to decimal degrees, we need to consider the degrees, minutes, and seconds separately. The given angle has 312 degrees, 24 minutes, and 1 second.

Since there are 60 minutes in a degree and 60 seconds in a minute, we need to convert the minutes and seconds to decimal form before adding them to the degrees.

Converting the minutes to decimal form: \( \frac{{24}}{{60}} = 0.4 \) degrees.

Converting the seconds to decimal form: \( \frac{{1}}{{60}} = 0.0166667 \) degrees.

Adding the degrees, converted minutes, and converted seconds: \( 312 + 0.4 + 0.0166667 = 312.4166667 \) degrees.

Finally, rounding to the nearest hundredth gives us \( 312.41 \) degrees, which is the decimal representation of the given angle.

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Find the Cartesian coordinates of the following points (given in polar coordinates). a. ( 2

, 4


) b. (1,0) c. (0, 3
π

) d. (− 2

, 4


) e. (−3, 6


) f. (−10,tan −1
( 3
4

)) g. (−1,3π) h. (6 3

, 3


)

Answers

Answer:

Step-by-step explanation:

To find the Cartesian coordinates of points given in polar coordinates, we can use the following conversions:

x = r * cos(theta)

y = r * sin(theta)

Let's apply these formulas to each point:

a. (2, 4π/3):

Using the conversion formulas, we have:

x = 2 * cos(4π/3) = 2 * (-1/2) = -1

y = 2 * sin(4π/3) = 2 * (√3/2) = √3

Therefore, the Cartesian coordinates of the point (2, 4π/3) are (-1, √3).

b. (1, 0):

Using the conversion formulas, we have:

x = 1 * cos(0) = 1 * 1 = 1

y = 1 * sin(0) = 1 * 0 = 0

Therefore, the Cartesian coordinates of the point (1, 0) are (1, 0).

c. (0, 3π):

Using the conversion formulas, we have:

x = 0 * cos(3π) = 0 * (-1) = 0

y = 0 * sin(3π) = 0 * 0 = 0

Therefore, the Cartesian coordinates of the point (0, 3π) are (0, 0).

d. (-2, 4π/3):

Using the conversion formulas, we have:

x = -2 * cos(4π/3) = -2 * (-1/2) = 1

y = -2 * sin(4π/3) = -2 * (√3/2) = -√3

Therefore, the Cartesian coordinates of the point (-2, 4π/3) are (1, -√3).

Determine whether the following series converges absolutely, converges conditionally, or diverges 00 Σ k-1 Does the series a, converge absolutely, converge conditionally, or diverge? OA. The series diverges because lim ag 0. k-[infinity] OB. The series converges conditionally because I la converges but Σa, diverges OC. The series diverges because la diverges. OD. The series converges conditionally because I a, converges but Σ a diverges OE. The series converges absolutely because a converges Σ CTT

Answers

Therefore, the answer can't be that the series converges absolutely.

The given series is Σk=1∞(−1)k+1/k−1.

We need to determine whether the series converges absolutely, converges conditionally, or diverges. OA.

The series diverges because lim ag 0. k-[infinity] OB.

The series converges conditionally because I la converges but Σa, diverges OC.

The series diverges because la diverges. OD.

The series converges conditionally because I a, converges but Σ a diverges OE.

The series converges absolutely because a converges Σ CTT

To find out whether the given series converges absolutely or conditionally, we have to consider the absolute value of the series.

The absolute value of the series is

Σk=1∞1k−1.

The above series is the harmonic series with the first term being 1.

Hence, the series diverges and thus, the given series

Σk=1∞(−1)k+1/k−1 diverges.

Thus, option (OA) is correct.

Option (OB) is incorrect because the given series does not converge.

Therefore, it cannot be convergent (conditional or absolute).

Option (OC) is incorrect because the series does not converge. It diverges.

Therefore, the answer can't be that the series diverges because of the limit comparison test.

Option (OD) is incorrect because the series does not converge.

It diverges.

Therefore, the answer can't be that the series converges conditionally because of the ratio test.

Option (OE) is incorrect because the series does not converge absolutely.

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The answer above is NOT correct. Convert the following point from rectangular to spherical coordinates: (452​​,4−56​​,2−52​​) (rho,θ,ϕ)= Usage: To enter a point, for example (x,y,z), type " (x,y,z)′′.

Answers

The point (452, 4-56, 2-52) in rectangular coordinates is approximately (ρ, θ, ϕ) ≈ (455.44, -0.1131, 1.680) in spherical coordinates.

To convert the point (x, y, z) = (452, 4-56, 2-52) from rectangular coordinates to spherical coordinates (ρ, θ, ϕ), we use the following formulas:

ρ = √(x^2 + y^2 + z^2)

θ = arctan(y / x)

ϕ = arccos(z / ρ)

Let's calculate each component:

ρ = √((452)^2 + (4-56)^2 + (2-52)^2)

= √(204304 + 2500 + 2601)

≈ √207405

≈ 455.44

θ = arctan((4-56) / 452)

≈ arctan(-52 / 452)

≈ -0.1131

ϕ = arccos((2-52) / ρ)

= arccos(-50 / 455.44)

≈ arccos(-0.1099)

≈ 1.680

Therefore, the point (452, 4-56, 2-52) in rectangular coordinates is approximately (ρ, θ, ϕ) ≈ (455.44, -0.1131, 1.680) in spherical coordinates.

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The company's gross margin and operating expenses, respectively, are: O $211.000 and $230,750 $739.550 and $191,720 O $529,020 and $230.750 O $211.000 and $191,720 $230,750 and $529,020 4 pts D D Question 5 A company has not sales of $750,300 and cost of goods sold of $548,300. Its not income is $10.280 The company's groas margin and operating expenses, respectively, arm O $211,000 and $230,750 O $739,550 and $191,720 $529,020 and $230,750 O $211.000 and $191,720 O $230.750 and $529,020 Question 6 Sales less sales discounts, less sales returns and allowances equals: Cost of Goods Sold Net Income O Net Sales O Gross Profit 4 pts 4 pts Goods in transit are included in a purchaser's inventory: O At any time during transit. O After the half-way point between the buyer and seller, When the supplier is responsible for freight charges. When the goods are shipped FOB shipping point. OIf the goods are shipped FOB destination. Question 11 The inventory costing method that smooths out erratic changes in costs is: O LCM. O FIFO. OLIFO. O Specific Identification. O Weighted average. 4 t ne 0 Question 12 Krusty Krab has the following products in its ending inventory Compute lower of cost or market for inventory. applied separately to each product Inventory by Product Product Quantity Cost per Unit 500 $ 500 $ 30 600 Scuba Masks Scuba Sults O $265,000 O $290,000. O $250,000 $268,000 O $275,000. Question 13 Market per Unit $ 550 $ 25 If equity is $368,000 and liabilities are $186,000, then assets equal: O $554,000. $922,000. $368,000. $186,000. O $182,000. 2 pts Assuming Base and Derived classes are designed appropriately, and basePtr and derivedPur are pointing to objects of their respective classes, which of the following lines of code will result in slicing? a. derivedPtr = basePtr b. basePtr = derivedPtr c. *derivedPtr = *basePtr d. *basePtr = *derivedPtr (3 pts) Given two classes, Car and Person, we should understand that a Person might have multiple cars and cars can transfer between People. How would you model this relationship? a. Inheritance b. Polymorphism c. A Car object inside the Person class d. A Person pointer inside the Car class Suppose a broker offers you an investment that will provide the following future cash flows: $1000 in exactly 1 year $2000 in exactly 2 years $4000 in exactly 3 years $8000 in exactly 4 years Your broker tells you that you will receive an average return of 13.46% if you pay $10,000 for this investment today. Suppose that y A. You consider the current price of $10,000 to be too expensive. B. You would be willing to pay more than $10,000 today for these exact future cash flows. C. You would pay $10,000, but only if the future cash flows are higher. D. It is impossible to calculate the value of these cash flows. Reset Selection Mark for Review What's This? RNAi is a very powerful potential therapeutic because: Select one: O a. Is readily available commercially O b. The people who discovered it won a Nobel Prize O c. It functions in the mitochondria O d. O e. It is easy to deliver to cells It can be used to turn off the expression of a specific gene Non-viral gene delivery systems are better than viral delivery systems because: Select one: O a. They are bigger than cells Ob. They can enhance the immune response directed towards the therapeutic gene Oc. They can be tailored to be non immunogenic Od. They are copying a system that is seen in nature . They can be altered genetically Find an equation of the tangent line to the graph of the function at the given point. g(x) = ex5 - 6x (-1, e5) I y = The population of a small city is 68,000. 1. Find the population in 23 years if the city declines at an annual rate of 1.9% per year. people. If necessary, round to the nearest whole number. 2. If the population declines at an annual rate of 1.9% per year, in how many years will the population reach 30,000 people? In years. If necessary, round to two decimal places. 3. Find the population in 23 years if the city's population declines continuously at a rate of 1.9% per year. people. If necessary, round to the nearest whole number. 4. If the population declines continuously by 1.9% per year, in how many years will the population reach 30,000 people? In years. If necessary, round to two decimal places. 5. Find the population in 23 years if the city's population declines by 1720 people per year. people. If necessary, round to the nearest whole number. 6. If the population declines by 1720 people per year, in how many years will the population reach 30,000 people? In years. If necessary, round to two decimal places. Consider the following system of gas-phase reactions: 1/2 A X rx = kC\/2k = 0.004(mol/dm) 1. min B=KCA K=0.3 min- A B A Y ry=k3C_k=0.25 dm/mol - min B is the desired product, and X and Y are foul pollutants that are expensive to get rid of. The specific reaction rates are at 27C. The reaction system is to be operated at 27C and 4 atm. Pure A enters the system at a volumetric flow rate of 10 dm/min. 10 11 (g) If you could vary the pressure between 1 and 100 atm, what pressure would you choose? A flare is used to convert unburned gases to innocuous products such as CO and HO. If a gas with the following composition is burned in the flare 70%CH, 5%CH, 15 % CO, 5%0, 5%N 2 and the flue gas contains 7.73%CO, 12.35%HO and the balance is O and N. What is the percent excess air used? Find the value of an investment of $10,000 for 14 years at an annual interest rate of 3.85% compounded continuously. The value of the investment is____. An unpipelined processor takes 6 ns to work on one instruction. It then takes 0.1 ns to latch its results into latches. When we convert the circuits into 4 sequential pipeline stages, the stages have the following lengths: 0.7ns; 1.3ns; 1.4ns; 0.9ns. Assuming that there are no stalls in the pipeline, what is the cycle time in the unpipelined and pipelined processors? O Unpipelined = 6 ns, Pipelined = 1.4 ns Unpipelined =6.1 ns, Pipelined = 1.5 ns O Unpipelined =6 ns, Pipelined = 1.5 ns Unpipelined =6.1 ns, Pipelined = 1.1 ns Unpipelined =6 ns, Pipelined = 1 ns None of the above -AA1992