Write 3.4 as a mixed number and as an improper fraction. Write your answers in simplest form.

Answers

Answer 1
34/10 or can be simplified to 17/5
Answer 2

Answer:

3 1/4 and 17/5

Step-by-step explanation:

to converting 3.4 to a fraction is to re-write 3.4 in the form p/q where p and q are both positive integers. To start with, 3.4 can be written as simply 3.4/1 to technically be written as a fraction. You have to multiply the numerator and denominator of 3.4/1 each by 10 to the power of that many digits. multiply the numerator and denominator of 3.4/1 each by 10:

3.4x10/10x1 = 34/10

​​ To simplify the fraction you have to find similar factors and cancel them out.

34/10 = 17/5

3.4 as a mixed number is 3 1/4. As an improper fraction it's 34/10. The simplest form is 17/5.


Related Questions

The PolyU plans to enter a two-person team in a relay race to raise money for charity. The relay consists of two 15K segments, run consecutively, and each run by a different person. George will run the first segment and Jean will run the second. Times for both runners are normally distributed as follows: George with mean 70 minutes and standard deviation 15 minutes; Jean with mean 65 minutes and standard deviation 10 minutes. Assume that their times are independent.

Assuming that the "time to beat" (competitor team from another school) is 120 minutes, what is the probability the PolyU team wins?

Answers

The probability that the PolyU team wins the relay race can be determined by calculating the cumulative probability that their combined time is less than or equal to the "time to beat" of 120 minutes.

Let's denote the time taken by George as X and the time taken by Jean as Y. Both X and Y are normally distributed with means and standard deviations given as follows:

George: X ~ N(70, 15^2)

Jean: Y ~ N(65, 10^2)

Since the times taken by George and Jean are independent, we can use the properties of normal distributions to calculate the probability of their combined time being less than or equal to 120 minutes.

To find the probability that X + Y ≤ 120, we need to find the joint distribution of X and Y and then calculate the probability of the combined time being less than or equal to 120. Since X and Y are normally distributed, their sum X + Y will also follow a normal distribution.

The mean of the sum X + Y is given by the sum of the individual means:

Mean(X + Y) = Mean(X) + Mean(Y) = 70 + 65 = 135 minutes.

The variance of the sum X + Y is given by the sum of the individual variances:

Var(X + Y) = Var(X) + Var(Y) = 15^2 + 10^2 = 325 minutes^2.

The standard deviation of the sum X + Y is the square root of the variance:

SD(X + Y) = √(Var(X + Y)) = √325 ≈ 18.03 minutes.

Now, we can use the properties of the normal distribution to calculate the probability P(X + Y ≤ 120) by standardizing the value:

Z = (120 - 135) / 18.03 ≈ -0.8313

Using a standard normal distribution table or a calculator, we can find the cumulative probability for Z = -0.8313, which represents the probability of the combined time being less than or equal to 120 minutes. Let's assume this probability is P(Z ≤ -0.8313) = p.

Therefore, the probability that the PolyU team wins the relay race can be given as 1 - p, as the team wins when their combined time is less than or equal to 120 minutes.

In summary, to find the probability of the PolyU team winning the relay race, we need to calculate the cumulative probability P(Z ≤ -0.8313) and subtract it from 1.

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Please show your answer to at least 4 decimal places.
Suppose that f(x, y) = x^2 - xy + y^2 − 5x + 5y with x^2 + y^2 ≤ 25.
1. Absolute minimum of f(x, y) is ______
2. Absolute maximum is _____

Answers

The absolute minimum value is - 10/3.

The absolute maximum value is 25.

Finding the absolute minimum of the function, using the method of partial differentiation. [tex]f(x, y) = x² - xy + y² − 5x + 5y∂f/∂x = 2x - y - 5∂f/∂y = - x + 2y + 5[/tex]. Solving, ∂f/∂x = 0 and ∂f/∂y = 0, we getx = 5/3, y = 5/3We have ∂²f/∂x² = 2, ∂²f/∂y² = 2, and ∂²f/∂x∂y = - 1, which give [tex]Δ = ∂²f/∂x² * ∂²f/∂y² - (∂²f/∂x∂y)²= 2 * 2 - (- 1)²= 4 - 1= 3[/tex]. Since Δ > 0 and ∂²f/∂x² > 0, we have the minimum as [tex]∂f/∂x = 2x - y - 5 = 0, ⇒ y = 2x - 5f(x, y) = x² - xy + y² − 5x + 5y= x² - x(2x - 5) + (2x - 5)² − 5x + 5(2x - 5)= 3x² - 20x + 25[/tex]. So, f(x, y) takes its absolute minimum at (5/3, 5/3) Absolute minimum value = 3(5/3)² - 20(5/3) + 25= - 10/3.

Since [tex]x² + y² ≤ 25[/tex], we have 2x ≤ 10 and 2y ≤ 10, which give x ≤ 5 and y ≤ 5. Since [tex]f(x, y) = x² - xy + y² − 5x + 5y[/tex], the value of f(x, y) is maximized at (5, 5), which is a point on the boundary of [tex]x² + y² = 25[/tex], and the absolute maximum value of the function is [tex]f(x, y) = x² - xy + y² − 5x + 5y= 5² - 5(5) + 5² − 5(5) + 5(5)= 25[/tex]. Hence, the absolute maximum value is 25.

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Find the centroid of the region bounded by the given curves.
(a) A triangle whose vertices are (0,0),(2,4) and (3,1).
(b) Find a general formula to find the centroid of a right triangle with sides of length p and q.

Answers

To find the centroid of a region bounded by curves, we need to determine the coordinates (x, y) that represent the center of mass of the region.

(a) The coordinates of the vertices of the triangle are (0,0), (2,4), and (3,1). To find the centroid, we calculate the x-coordinate by averaging the x-coordinates of the vertices: x = (0 + 2 + 3)/3 = 5/3. Similarly, we calculate the y-coordinate by averaging the y-coordinates of the vertices: y = (0 + 4 + 1)/3 = 5/3. Therefore, the centroid of the triangle is located at (5/3, 5/3).

(b) For a right triangle with sides of length p and q, the centroid is located at a distance of 1/3 from each vertex along the median of the adjacent side. Let's assume the right angle vertex is located at (0,0) and the hypotenuse extends from (0,0) to (p,0). The midpoint of the hypotenuse is (p/2, 0). The median, which connects the midpoint to the right angle vertex, has a length of p/2. Therefore, the centroid is located at a distance of 1/3 from the right angle vertex along the median, which gives us the coordinates (p/6, 0).

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Test the stability of the following characteristic equation:

P(z)=z -1.1z +0.2

Answers

the given characteristic equation  P(z)=z -1.1z +0.2 is stable.

To test the stability of the given characteristic equation P(z) = z^2 - 1.1z + 0.2, we need to examine the roots of the equation.

We can find the roots by factoring or using the quadratic formula. In this case, the roots are:

z = 0.9

z = 0.2

For a system to be stable, the magnitude of all the roots must be less than 1. In this case, both roots have magnitudes less than 1:

|0.9| = 0.9 < 1

|0.2| = 0.2 < 1

Since both roots have magnitudes less than 1, the system is stable.

Therefore, the given characteristic equation is stable.

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Find the directional derivative of the function at the given point in the direction of the vector v.
f(x, y) = e^x sin y, ( 0,π/3), v = < -6, 8 >

Answers

The directional derivative of the function

[tex]f(x,y)= e^x sin y[/tex]at the point (0, π/3) in the direction of vector v = < -6, 8 > .

The directional derivative of a function at a given point in a given direction is the rate at which the function changes in that direction at that point. It gives the slope of the curve in the direction of the tangent of the curve at that point. The formula for the directional derivative of f(x,y) at the point (a,b) in the direction of vector v =  is given by:

[tex]$$D_{\vec v}f(a,b)=\lim_{h\rightarrow0}\frac{f(a+hu,b+hv)-f(a,b)}{h}$$[/tex]

where [tex]$h$[/tex] is a scalar.

We can re-write the above formula in terms of partial derivatives by taking the dot product of the gradient of[tex]$f$ at $(a,b)$[/tex] and the unit vector in the direction of vector [tex]$\vec v$[/tex].

[tex]u\end{aligned}$$Where $\nabla f$[/tex]

is the gradient of [tex]$f$ and $\vec u$[/tex] is the unit vector in the direction of

[tex]$\vec v$ with $\left\|{\vec u}\right\|=1$[/tex]

Now, let's find the directional derivative of the given function f(x, y) at the point (0,π/3) in the direction of the vector v = < -6, 8 >.The gradient of the function

[tex]$f(x,y)=e^x\sin y$ is given by:$$\nabla[/tex]

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For the function f(x)=8+9x−5x2, find the slopes of the tangent lines at x=0,x=1, and x=2

Answers

In order to find the slopes of the tangent lines at x = 0, x = 1, and x = 2 for the function f(x) = 8 + 9x - 5x^2, we differentiate the function to obtain its derivative. The slopes of the tangent lines are -8, 13, and -2, respectively.

The slope of a tangent line at a given point is equal to the derivative of the function at that point. To find the derivative of f(x) = 8 + 9x - 5x^2, we differentiate the function with respect to x. Taking the derivative, we get:

f'(x) = d/dx (8 + 9x - 5x^2)

= 9 - 10x

Now, we can evaluate the derivative at the given points:

At x = 0:

f'(0) = 9 - 10(0) = 9

At x = 1:

f'(1) = 9 - 10(1) = -1

At x = 2:

f'(2) = 9 - 10(2) = -11

Therefore, the slopes of the tangent lines at x = 0, x = 1, and x = 2 for the function f(x) = 8 + 9x - 5x^2 are -8, 13, and -2, respectively. These slopes indicate the rate of change of the function at each point and can be interpreted as the steepness of the tangent line at that particular x-value.

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Give the NEGATION and TRUTH VALUE of the NEGATION, of the following statement: All Rational numbers are Integers There Exists Integers that are not Rationals (True) There Exists Integers that are not

Answers

The given statement is: All Rational numbers are Integers. The negation of the above statement is: All Rational numbers are not Integers. The truth value of the negation is False.

The statement: There Exist Integers that are not Rationals is True as well. So, the answer is NEGATION: All Rational numbers are not Integers. TRUTH VALUE: False.The statement: There Exist Integers that are not Rationals is True.

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Use contours corresponding to c = 1 and c = 0 to estimate ∂g/∂x at the point (2√2, 0) for the function
g(x, y) = √(9-x^2 – y^2. Round your answer to two decimal places.

Answers

The partial derivative of g with respect to x at the point (2√2, 0) is approximately equal to 1.41 or 1.4 (rounded to two decimal places).

Given that the function is g(x, y) = √(9-x^2 – y^2).

Use contours corresponding to c = 1 and c = 0 to estimate ∂g/∂x at the point (2√2, 0).

To estimate ∂g/∂x, we need to differentiate g(x, y) partially with respect to x.

∂g/∂x = 2x/2√(9-x^2 – y^2)

Let’s find the equation of the contour c = 1 by substituting the values in the function g(x, y).

g(x, y) = √(9-x^2 – y^2)

g(x, y) = 1 when x = 2√2, y = 0

Hence, the contour equation becomes1 = √(9-(2√2)^2 – 0^2)

Simplify the equation.

1 = √(9-8 – 0)1 = √1

Thus, the contour equation is x² + y² = 8.

To find the contour c = 0, we will substitute c = 0 in the function g(x, y).

g(x, y) = √(9-x^2 – y^2)

g(x, y) = 0 when x = 3, y = 0

Hence, the contour equation becomes 0 = √(9-3² – 0²)

Simplify the equation.0 = √(9-9)0 = 0

Thus, the contour equation is x² + y² = 9.

∂g/∂x = 2x/2√(9-x^2 – y^2)

= 2(2√2)/2√(9-8)

= 2√2/2

= √2

≈ 1.41

The partial derivative of g with respect to x at the point (2√2, 0) is approximately equal to 1.41 or 1.4 (rounded to two decimal places).

Therefore, the correct answer is 1.4 (rounded to two decimal places).

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Given the following open statements by considering the
universe consists of all integers. p(x): x is odd number q(x): x2 +
2x − 15 r(x): x > 0
Determine the truth values of the following statemen

Answers

The truth values of the given statements are:

1. True

2. False

3. True

To determine the truth values of the given statements using the open statements p(x), q(x), and r(x) with the universe consisting of all integers, we can substitute the values of x into the open statements and evaluate their truth values.

1. p(5) → q(4)

  p(5): 5 is an odd number (True)

  q(4): 4^2 + 2*4 - 15 = 16 + 8 - 15 = 9 (True)

  Truth value: True → True = True

2. r(-1) ∧ p(2)

  r(-1): -1 > 0 (False)

  p(2): 2 is an odd number (False)

  Truth value: False ∧ False = False

3. ¬q(3) ∨ r(-2)

  ¬q(3): ¬(3^2 + 2*3 - 15) = ¬(9 + 6 - 15) = ¬0 = True

  r(-2): -2 > 0 (False)

  Truth value: True ∨ False = True

Therefore, the truth values of the given statements are:

1. True

2. False

3. True

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2. Consider the system defined by the impulse response h(n)=28(n+3)+28(n)+28(n-3). a) b) c) d) z Represent h(n). (1 v.) Characterize the system in terms of causality and stability. Justify. (1 v.) Determine the frequency response of the system H(ew). (1 v.) Represent module and phase of the system. (1 v.)

Answers

The system defined by the impulse response h(n) = 28(n+3) + 28n + 28(n-3) can be represented as h(n) = 28δ(n+3) + 28δ(n) + 28δ(n-3), where δ(n) denotes the unit impulse function.

In terms of causality, we can determine whether the system is causal by examining the impulse response. If the impulse response h(n) is non-zero only for n ≥ 0, then the system is causal. In this case, since the impulse response h(n) is non-zero for n = -3, 0, and 3, the system is not causal.

To determine the stability of the system, we need to examine the summation of the absolute values of the impulse response. If the summation is finite, the system is stable. In this case, we can calculate the summation as ∑|h(n)| = 28 + 28 + 28 = 84, which is finite. Therefore, the system is stable.

However, since the impulse response is given in the time domain and not in a closed-form expression, it is not possible to directly determine the frequency response without further manipulation or additional information.

Given the absence of specific frequency domain information or a closed-form expression for the frequency response, it is not possible to accurately represent the module and phase of the system H(e^ω) without further calculations or additional details about the system.

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6) Study the following examples and form a definition of each of these terms: convex and concave, in your own words. Then look up the mathematical definitions in the glossary. Explain the mathematical

Answers

Convex and concave are terms used to describe the shape and curvature of objects. In general terms, a convex shape appears to bulge outward or curve outward, while a concave shape appears to curve inward or have a "caved-in" appearance.

Mathematically, a convex shape refers to a set where, for any two points within the set, the line segment connecting them lies entirely within the set. In other words, a set is convex if it contains all the line segments connecting any two points within the set. Convexity implies that the shape does not have any indentations or "dips" and is "curving outward" in a sense.

Conversely, a concave shape refers to a set where, for any two points within the set, the line segment connecting them extends outside the set. This means that a concave shape has regions that curve inward or have "caved-in" portions. Concave shapes exhibit curves that are "curving inward" in a sense.

Convex shapes appear to bulge outward or have a non-caved-in appearance, while concave shapes appear to curve inward or have regions that are "caved-in." In mathematics, convexity is defined by the property that all line segments connecting any two points within a set lie entirely within the set, while concavity is defined by the property that line segments connecting any two points extend outside the set.

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ex 17. Determine whether each of these conditional statements is true or false. a) If1 + 1 = 2, then 2 + 2 = 5. b) If1 +1= 3, then 2 + 2 = 4. c) If 1+1=3, then 2 + 2 = 5. d) If monkeys can fly, then 1 + 1 = 3.

Answers

a)  False - The consequent (2 + 2 = 5) does not hold true when the condition (1 + 1 = 2) is satisfied.

b)  False - Neither the condition (1 + 1 = 3) nor the consequent (2 + 2 = 4) is true.

c)  False - The consequent (2 + 2 = 5) does not follow when the condition (1 + 1 = 3) is met.

d)  True - Since the condition (monkeys can fly) is false, the statement (1 + 1 = 3) holds true due to the structure of the conditional statement.

In the given conditional statements, we need to determine whether each statement is true or false based on the provided conditions.

a) If 1 + 1 = 2, then 2 + 2 = 5. This statement is false because the initial condition (1 + 1 = 2) is true, but the consequent (2 + 2 = 5) is false. In mathematics, if the condition is true, the consequent should also be true, but in this case, it is not.

b) If 1 + 1 = 3, then 2 + 2 = 4. This statement is false because both the condition (1 + 1 = 3) and the consequent (2 + 2 = 4) are false. The initial condition is not satisfied, so the statement cannot be true.

c) If 1 + 1 = 3, then 2 + 2 = 5. This statement is false for the same reason as statement a) - the initial condition is true, but the consequent is false.

d) If monkeys can fly, then 1 + 1 = 3. This statement is true because it follows the structure of a conditional statement where the condition (monkeys can fly) is false, and therefore the statement is always true.

In summary, statement a), b), and c) are false, while statement d) is true.

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Sketch a graph of a single function that has all of the propers a. Continuous and differentiable ever f′(x)<0 everywhere it is defined. c. A horizontal asymptote at y=2. d. f′′(x)<0 on (−[infinity],1) and (2,4) f′′(x)>0 on (1,2) and (4,[infinity]).

Answers

The function satisfies the properties of being continuous and differentiable everywhere and having a horizontal asymptote at y = 2. However, it does not satisfy the conditions for f'(x) < 0 everywhere it is defined and f''(x) < 0 on the intervals (-∞,1) and (2,4), and f''(x) > 0 on the intervals (1,2) and (4,∞).

To sketch a graph that satisfies all the given properties, we can consider the following function:

[tex]f(x) = 2 - e^(-x)[/tex]

Let's analyze each property:

a. Continuous and differentiable everywhere:

The function [tex]f(x) = 2 - e^(-x)[/tex] is continuous and differentiable for all real numbers. The exponential function is continuous and differentiable for any x, and subtracting it from 2 maintains continuity and differentiability.

b. f′(x) < 0 everywhere it is defined:

Taking the derivative of f(x), we have:

[tex]f'(x) = e^(-x)[/tex]

Since [tex]e^(-x)[/tex] is always positive for any x, f'(x) is always positive, which means f(x) does not satisfy this property.

c. A horizontal asymptote at y = 2:

As x approaches infinity, the term approaches 0. Therefore, the limit of f(x) as x approaches infinity is:

lim(x→∞) f(x) = lim(x→∞)[tex](2 - e^(-x))[/tex]

= 2 - 0

= 2

This shows that f(x) has a horizontal asymptote at y = 2.

d. f′′(x) < 0 on (−∞,1) and (2,4), f′′(x) > 0 on (1,2) and (4,∞):

Taking the second derivative of f(x), we have:

[tex]f''(x) = e^(-x)[/tex]

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Let 3xyz=eᶻ.
Use partial derivatives to calculate ∂z/∂x and ∂z/∂y
and enter your answers as functions of x,y&z.
∂z/∂z =
∂z/∂y =

Answers

The partial derivatives ∂z/∂x and ∂z/∂y can be calculated using the given equation 3xyz=eᶻ. The results are as follows: ∂z/∂x = (z/x) and ∂z/∂y = (z/y).

To find the partial derivative ∂z/∂x, we treat y and z as constants while differentiating with respect to x. Taking the natural logarithm on both sides of the given equation, we get ln(3xyz) = z. Now, differentiating implicitly with respect to x, we obtain (1/(3xyz))(3yz + x∂z/∂x) = ∂z/∂x. Simplifying this expression, we have ∂z/∂x = (z/x).

Similarly, to find the partial derivative ∂z/∂y, we treat x and z as constants while differentiating with respect to y. Taking the natural logarithm on both sides of the given equation, we get ln(3xyz) = z. Now, differentiating implicitly with respect to y, we obtain (1/(3xyz))(3xz + y∂z/∂y) = ∂z/∂y. Simplifying this expression, we have ∂z/∂y = (z/y).

Since z appears in the numerator of both ∂z/∂x and ∂z/∂y, and it is divided by x and y respectively, the partial derivatives are equal to z divided by the corresponding variables. Therefore, ∂z/∂z = ∂z/∂y = 1.

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Suppose the supply function of a certain item is given by S(q) and the demand function is given by D(q).

S(q) =1/2q+2, D(q) = −7/10q+14

Graph the supply and demand curves. Use the graphing tool to graph the functions.

Answers

The supply function is given by S(q) = 1/2q + 2, and the demand function is given by D(q) = -7/10q + 14. The supply curve is an upward-sloping line that represents the quantity of the item that suppliers are willing to provide at different prices. The demand curve, on the other hand, is a downward-sloping line that represents the quantity of the item that consumers are willing to purchase at different prices.

By graphing these two curves, we can analyze the equilibrium point where supply and demand intersect. To graph the supply and demand curves, we can plot points on a coordinate plane using different values of q. For the supply curve, we can calculate the corresponding values of S(q) by substituting different values of q into the supply function S(q) = 1/2q + 2. Similarly, for the demand curve, we can calculate the corresponding values of D(q) by substituting different values of q into the demand function D(q) = -7/10q + 14. By connecting the plotted points, we obtain the supply and demand curves.

The supply curve, S(q), will have a positive slope of 1/2, indicating that as the quantity q increases, the supply also increases. The intercept of 2 on the y-axis represents the minimum supply even when the quantity is zero. On the other hand, the demand curve, D(q), will have a negative slope of -7/10, indicating that as the quantity q increases, the demand decreases. The intercept of 14 on the y-axis represents the demand when the quantity is zero. The intersection point of the supply and demand curves represents the equilibrium point, where the quantity supplied equals the quantity demanded.

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Compute the gradient field F=∇φ associated to each of the following functions: (a) φ(x,y)=√xy​ (b) φ(x,y,z)=e−zsin(x+y).

Answers

(a) The gradient field F = ∇φ for the function φ(x, y) = √(xy) is given by F = (1/(2√x))i + (1/(2√y))j. (b) The gradient field F = ∇φ for the function φ(x, y, z) = e^(-z)sin(x + y) is given by [tex]F = e^(-z)cos(x + y)i + e^(-z)cos(x + y)j - e^(-z)sin(x + y)k.[/tex]

(a) To compute the gradient field F = ∇φ for the function φ(x, y) = √(xy), we need to find the partial derivatives of φ with respect to x and y.

∂φ/∂x = (∂/∂x)(√(xy))

= (√y)/2√(xy)

= √y/(2√(xy))

= 1/(2√x)

∂φ/∂y = (∂/∂y)(√(xy))

= (√x)/2√(xy)

= √x/(2√(xy))

= 1/(2√y)

(b) To compute the gradient field F = ∇φ for the function φ(x, y, z) [tex]= e^(-z)sin(x + y)[/tex], we need to find the partial derivatives of φ with respect to x, y, and z.

∂φ/∂x = (∂/∂x[tex])(e^(-z)sin(x + y))[/tex]

[tex]= e^(-z)cos(x + y)[/tex]

∂φ/∂y = (∂/∂y)[tex](e^(-z)sin(x + y))[/tex]

[tex]= e^(-z)cos(x + y)[/tex]

∂φ/∂z = (∂/∂z)[tex](e^(-z)sin(x + y))[/tex]

[tex]= -e^(-z)sin(x + y)[/tex]

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find the zeros of the polynomial function calculator with steps

Answers

equal your quadratic formula to 0 and solve
EX. 0= x^+2x+4
solve by quadratic equation for right answer
Quadratic formula= -b+- (square root) b^2-4ac all of it over 2a

The zeros of a polynomial function can be found using different methods such as factoring, the quadratic formula, and synthetic division. Factoring is used when the polynomial can be easily factored, the quadratic formula is used for quadratic polynomials that cannot be factored, and synthetic division is used for higher degree polynomials.

Finding zeros of a polynomial function

To find the zeros of a polynomial function, we need to solve the equation f(x) = 0, where f(x) represents the polynomial function.

There are different methods to find the zeros of a polynomial function, including:

 

Each method has its own steps and calculations involved. It is important to choose the appropriate method based on the degree of the polynomial and the available information.

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Solve the following quires and elaborate working with answer.
Find an equation for the line tangent to the graph of the given function at the indicated point. f(x)=x^2 − x at (3,6)
Find the derivative. f(x)=20x^1/2 – 1/2^x^20
Find all values of x (if any) where the tangent line to the graph of the function is horizontal. y=x^3−12x+2

Answers

The equation for the line tangent to the graph of f(x) = x^2 - x at the point (3, 6) is y = 5x - 9.the tangent line to the graph of y = x^3 - 12x + 2 is horizontal at x = -2 and x = 2.

The derivative of f(x) = 20x^(1/2) - (1/2)^(x^20) is f'(x) = 10/x^(1/2) + (1/2)^(x^19) * ln(1/2) * (x^20).

To find the values of x where the tangent line to the graph of y = x^3 - 12x + 2 is horizontal, we need to find the x-values where the derivative is equal to zero.

Differentiating y = x^3 - 12x + 2 with respect to x gives y' = 3x^2 - 12.

Setting y' = 0 and solving for x, we have 3x^2 - 12 = 0. Simplifying further, we get x^2 - 4 = 0. Factoring the quadratic equation, we have (x + 2)(x - 2) = 0. So, x = -2 and x = 2.

Therefore, the tot tangent line the graph of y = x^3 - 12x + 2 is horizontal at x = -2 and x = 2.

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Problem 9 (12 pts.) Determine the transfer function for the following ODE: 38 +30x + 63x = 5f (t) , x(0) = 4; x(0) = 2

Answers

The transfer function for the given ODE is H(s) = 5 / (63s + 68). The transfer function relates the input function F(s) to the output function X(s) in the Laplace domain.

To determine the transfer function for the given ordinary differential equation (ODE), we need to apply the Laplace transform to both sides of the equation. The Laplace transform of a function f(t) is denoted as F(s) and is defined as:

F(s) = L[f(t)] = ∫[0 to ∞] e^(-st) f(t) dt

Applying the Laplace transform to the given ODE, we have:

38s + 30sX(s) + 63s^2X(s) = 5F(s)

Rearranging the equation and factoring out X(s), we get:

X(s) = 5F(s) / (38s + 30s + 63s^2)

Simplifying further:

X(s) = 5F(s) / (63s^2 + 68s)

Dividing the numerator and denominator by s, we obtain:

X(s) = 5F(s) / (63s + 68)

Thus, the transfer function for the given ODE is:

H(s) = X(s) / F(s) = 5 / (63s + 68)

Therefore, the transfer function for the given ODE is H(s) = 5 / (63s + 68). The transfer function relates the input function F(s) to the output function X(s) in the Laplace domain.

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Parametrize (give parametric equations for) the function h(x)=x2−4x+2 (1) Convert the point to polar coordinates: (a) (3,3) (b) (−4,0)

Answers

The polar coordinates are (3√(2), π/4). The point (-4,0) has polar coordinates of (4,π).

Parametrization of the function h(x) = x² - 4x + 2Parametrization or giving parametric equations for the function is a process of expressing a certain curve or surface in terms of parameters

. Consider h(x) =  x² - 4x + 2, to parametrize this function, let x be the parameter which implies x = t.

Therefore, the parametric equation for h(x) = x²- 4x + 2 is: h(t) = t² - 4t + 2

In Mathematics, parametrization of a curve or surface is defined as the process of expressing a given curve or surface in terms of parameters. Given the function h(x) = x² - 4x + 2, to parametrize the function, let x be the parameter. Therefore, we can write the function as h(t) = t² - 4t + 2.

Converting points from Cartesian coordinates to polar coordinates is another basic mathematical skill. Converting the point (3,3) to polar coordinates:

r = √( x² + y²)

= √(3² + 3 ²)

= √(18) = 3√(2) ;

tan(θ) = y/x = 1, θ = π/4.

Thus, the polar coordinates are (3√(2), π/4). The point (-4,0) has polar coordinates of (4,π).

In conclusion, parametrization is an important tool in mathematics, and it is useful in finding solutions to mathematical problems.

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Solving A = Pe^rt for P, we obtain P = Ae^-it which is the present value of the amount A due in t years if money earns interest at an annual nominal rate r compounded continuously. For the function P = 12,000e ^-0.07t, in how many years will the $12,000 be due in order for its present value to be $7,000?

In ______ years, the $12,000 will be due in order for its present value to be $7,000.

(Type an integer or decimal rounded to the nearest hundredth as needed.)

Answers

In about 10.9 years, the $12,000 will be due for its present value to be $7,000.

Solving A = Pe^rt for P,

we obtain

P = Ae^-it is the present value of A due in t years if money earns interest at an annual nominal rate r compounded continuously.

For the function

P = 12,000e ^-0.07t, and

we need to find in how many years will the $12,000 be due for its present value to be $7,000, which is represented by

P = 7,000.

To solve the above problem, we must equate both equations.

12,000e ^-0.07t = 7,000

Dividing both sides by 12,000,

e ^-0.07t = 7/12

Taking the natural logarithm of both sides,

ln e ^-0.07t = ln (7/12)-0.07t ln e = ln (7/12)t

= (ln (7/12))/(-0.07)t

= 10.87

≈ 10.9 years.

Therefore, in about 10.9 years, the $12,000 will be due for its present value to be $7,000.

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Please Help
Calculate the answer to the correct number of significant digits. 105 + 62.4 You may use a calculator. But remember, not every digit the calculator gives you is a significant digit!

Answers

The answer to the correct number of significant digits is 167.

Maximum digits in the question is Three so we have to keep final answer to three significant figures

Significant figures are the number of digits that add to the correctness of a value, frequently a measurement. The first non-zero digit is where we start counting significant figures.

Now by doing simple addition (105+62.4) = 167.4

On rounding off our final answer to three ,digit 4 after decimal will be dropped.

Therefore, the answer to the correct number of significant digits is 167.

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Find the present value of the following ordinary simple
annuity,
Periodic Payment: $704
Payment Interval: 3 months
Term: 2.75 years
Interest Rate: 11%
Conversion Period: quarterly
(Round the final ans

Answers

The correct value  present value of the ordinary simple annuity is approximately $6,002.68.

To find the present value of the ordinary simple annuity, we can use the formula:

[tex]PV = P * (1 - (1 + r)^(-n)) / r[/tex]

Where:

PV = Present value

P = Periodic payment

r = Interest rate per period

n = Number of periods

In this case, the periodic payment is $704, the payment interval is 3 months, the term is 2.75 years, and the interest rate is 11% per year. Since the interest rate is provided as an annual rate, we need to convert it to a quarterly rate by dividing it by 4.

First, let's calculate the number of payment periods. Since the payment interval is 3 months and the term is 2.75 years, we have:

Number of periods (n) = Term (in years) / Payment interval (in years)

= 2.75 years / (1/4) years

= 11

Next, let's calculate the interest rate per quarter. Since the interest rate is 11% per year, we divide it by 4 to get the quarterly rate:

Interest rate per period (r) = Annual interest rate / Number of periods per year

= 11% / 4

= 0.11 / 4

= 0.0275

Now, we can calculate the present value (PV) using the formula:

PV = $704 *[tex](1 - (1 + 0.0275)^(-11)) / 0.0275[/tex]

Calculating this expression, we find that the present value (PV) is approximately $6,002.68.

Therefore, the present value of the ordinary simple annuity is approximately $6,002.68.

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1) find the groups found in the maps
2) find the reduced Boolean functions derived from the maps and
how the maps relate to
terms in the optimised Boolean functions.

Answers

The groups found in the maps correspond to logical terms in the Boolean functions, and the reduced Boolean functions are derived by combining and simplifying these terms using the information provided by the maps. The maps serve as a visual aid in identifying the groups and their relationships, facilitating the simplification process and enabling the construction of optimized Boolean expressions.

1) The groups found in the maps are clusters of adjacent 1s or 0s in the truth table or Karnaugh map. These groups represent logical terms in the Boolean functions. In a Karnaugh map, the groups can be formed by combining adjacent cells horizontally or vertically, forming rectangles or squares. Each group corresponds to a term in the Boolean function.

2) The reduced Boolean functions derived from the maps are simplified expressions that represent the logical relationships between the input variables and the output. These reduced functions are obtained by combining and eliminating terms in the original Boolean functions. The maps help in identifying the groups and their corresponding terms, which can then be simplified using Boolean algebra rules such as absorption, simplification, and consensus.

The Karnaugh map is a graphical representation of a truth table that allows for visual analysis and simplification of Boolean functions. The map consists of cells representing all possible combinations of input variables, with the output values placed inside the cells. By examining the adjacent cells, groups of 1s or 0s can be identified. These groups represent logical terms in the Boolean functions.

To obtain the reduced Boolean functions, the identified groups are combined using Boolean algebra rules. Adjacent groups that differ by only one variable are merged to form larger groups. The resulting groups are then used to construct simplified Boolean expressions that represent the original functions. The simplification process involves eliminating redundant terms and applying Boolean algebraic rules such as absorption, simplification, and consensus.

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please solve this~
d²x 4. Show that x(t) = xm exp(-ßt) exp(tiwt) is a solution of the equation m + dt² dt kx = 0, where w and ß are defined by functions of m, k, and b. (10 pts)

Answers

The function x(t) = xm exp(-ßt) exp(tiwt) is a solution of the differential equation:m + dt² dt kx = 0.

The given differential equation is:m + dt² dt kx = 0.We need to show that the function: x(t) = xm exp(-ßt) exp(tiwt) is a solution of the given differential equation.To verify this, we need to find the second derivative of x(t), and substitute x(t) and its derivatives into the differential equation.

Let's find the derivatives of x(t):x(t) = xm exp(-ßt) exp(tiwt)The first derivative of x(t):dx/dt = -xm ß exp(-ßt) exp(tiwt) + xm tiw exp(-ßt) exp(tiwt)The second derivative of x(t):d²x/dt² = xm ß² exp(-ßt) exp(tiwt) - 2xm ß tiw exp(-ßt) exp(tiwt) + xm tiw² exp(-ßt) exp(tiwt)Now, substitute the function x(t) and its derivatives into the differential equation:m + dt² dt kx = 0m + d(xm ß² exp(-ßt) exp(tiwt) - 2xm ß tiw exp(-ßt) exp(tiwt) + xm tiw² exp(-ßt) exp(tiwt)) dt k = 0

The above differential equation simplifies as follows:m + d(xm ß² - 2xm ß tiw + xm tiw²) exp(-ßt) exp(tiwt) = 0Now, we need to find w and ß in terms of m, k, and b, such that the above differential equation holds true.Substituting the value of w and ß, we have:x(t) = xm exp(-ßt) exp(tiwt) = xm exp(-√(k/m + b/2m) t) exp(ti√(k/m - b/2m) t)Hence, the function x(t) = xm exp(-ßt) exp(tiwt) is a solution of the differential equation:m + dt² dt kx = 0.

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Find the product.
(2p+7)(3p-9)

Answers

Simplifying expression- 6p^2 + 3p - 36
Roots of polynomials- -7/2, 3 or -3.5, 3

. In a common base connection, the current amplification
factor is 0.8. If the emitter current is 2mA, determine the value
of
1) Collector current
2) Base current

Answers

If the emitter current is 2mA, the value of the collector current is 1.11 mA and that of the base current is 1.38 mA

Emitter current = Ie = 2mA

Amplification factor = A = 0.8

Using the formula for common base configuration -

Ie = Ic + Ib

Substituting the values -

2mA = Ic + Ib

2mA = Ic + (Ic / A)

2mA = Ic x (1 + 1/A )

2mA = Ic x (1 + 1/0.8)

Solving for the emitter current -

Ic = (2mA) / (1 + 1/0.8)

= (2mA) / (1.08 /0.8)

= 1.11

Calculating the base current -

= Ib = Ic / A

Substituting the values -

Ib = (1.11) / 0.8

= 1.38

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Make a neat sketch of the following also mention the degrees of freedom 3.1 Cylindrical 3.2 Universal 3.3 Spherical (9)

Answers

Cylindrical, universal, and spherical are three types of robotic joints used in robotic systems. Cylindrical joints have one rotational and one translational degree of freedom, universal joints have two rotational degrees of freedom, and spherical joints have three rotational degrees of freedom.  

1. Cylindrical Joint: A cylindrical joint consists of a prismatic (linear) joint combined with a revolute (rotational) joint. It provides one rotational degree of freedom and one translational degree of freedom. The rotational axis is perpendicular to the translation axis, allowing movement in a cylindrical motion.

2. Universal Joint: A universal joint, also known as a cardan joint, consists of two perpendicular revolute joints connected by a cross-shaped coupling. It provides two rotational degrees of freedom. The joint allows rotation in two orthogonal axes, enabling a wide range of motion.

3. Spherical Joint: A spherical joint, also called a ball joint, allows rotation in three perpendicular axes. It provides three rotational degrees of freedom, enabling movement in any direction. The joint is typically represented by a ball and socket configuration.

Please refer to the following link for a neat sketch illustrating the configurations and degrees of freedom of the cylindrical, universal, and spherical joints: [Link to Sketch] These joint types are fundamental components in robotic systems and provide various ranges of motion, allowing robots to perform complex tasks and navigate in three-dimensional spaces.

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Find a power series representation (starting at k=0 ) for f(x)=5/8−x centered at x=3. Hint: Write the function as the sum of a geometric series. (b) (4 pts) Determine the interval of convergence for the power series you found in part (a). Remember, geometric series do not converge at the endpoints, so you do not need to check those.

Answers

(a) The power series representation for f(x) = 5/8 - x centered at x = 3 is ∑[k=0]∞ (-1)^k * (x - 3)^k * (5/8).

To obtain the power series representation, we first express the function as the sum of a geometric series. Notice that f(x) can be written as 5/8 - x = 5/8 - 1 * (x - 3). Now, we can see that the function is in the form a - r * (x - c), where a = 5/8, r = 1, and c = 3.

By using the formula for the sum of an infinite geometric series, we have:

f(x) = a / (1 - r * (x - c))

f(x) = (5/8) / (1 - (x - 3))

Now, we can rewrite this expression as a power series by expanding the denominator using the formula for the sum of an infinite geometric series:

f(x) = (5/8) * ∑[k=0]∞ ((x - 3)^k)

Multiplying through by (5/8), we get:

f(x) = ∑[k=0]∞ ((5/8) * (x - 3)^k)

Therefore, the power series representation for f(x) = 5/8 - x centered at x = 3 is ∑[k=0]∞ (-1)^k * (x - 3)^k * (5/8).

(b) The interval of convergence for the power series representation obtained in part (a) is the range of x-values for which the series converges. For geometric series, the series converges if the absolute value of the common ratio is less than 1.

In this case, the common ratio is (x - 3). To ensure convergence, we must have |x - 3| < 1. This means that x must be within a distance of 1 unit from the center x = 3.

Therefore, the interval of convergence for the power series representation is (2, 4), excluding the endpoints x = 2 and x = 4. At these endpoints, the series may converge or diverge, so they need to be separately checked. However, since geometric series do not converge at the endpoints, we don't need to check them in this case.

In summary, the power series representation for f(x) = 5/8 - x centered at x = 3 is given by ∑[k=0]∞ (-1)^k * (x - 3)^k * (5/8), and the interval of convergence is (2, 4).

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2x/3 =8 what is the value of x

Answers

The value of x in the equation 2x/3 = 8 is x = 12.

To find the value of x in the equation 2x/3 = 8, we can solve for x using algebraic operations. Let's go through the steps:

Multiply both sides of the equation by 3 to eliminate the fraction:

3 * (2x/3) = 3 * 8

This simplifies to:

2x = 24

To isolate x, divide both sides of the equation by 2:

(2x)/2 = 24/2

The 2's cancel out on the left side, leaving:

x = 12

Therefore, the value of x that satisfies the equation 2x/3 = 8 is x = 12.

To verify this solution, we can substitute x = 12 back into the original equation:

2(12)/3 = 8

24/3 = 8

8 = 8

Since the equation is true, x = 12 is indeed the correct solution.

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