6. For the function f(x) = 3x4 – 24x?, = (a) [5] find all critical numbers. (b) [7] determine the intervals of increase or decrease. = (c) [6] find the absolute maximum and absolute minimum values on the interval [-3, 3]

Answer:

1863

Step-by-step explanation:

the lok ain not

The value of the double integral ∫∫R yx dA, where R is the region in the first quadrant bounded below by the parabola y = x² and above by the line y = 2, is 4/3.

To evaluate the given double integral, we need to determine the limits of integration for x and y. The region R is bounded below by the parabola y = x² and above by the line y = 2. Setting these two equations equal to each other, we find x² = 2, which gives us x = ±√2. Since R is in the first quadrant, we only consider the positive value, x = √2.

Now, to evaluate the double integral, we integrate yx with respect to y first and then integrate the result with respect to x over the limits determined earlier. Integrating yx with respect to y gives us (1/2)y²x. Integrating this expression with respect to x from 0 to √2, we obtain (√2/2)y²x.

Plugging in the limits for y (x² to 2), and x (0 to √2), and evaluating the integral, we get the value of the double integral as 4/3.

Therefore, the value of the double integral ∫∫R yx dA is 4/3. Option D: 4/3 is the correct answer.

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To evaluate the double integral of f(x, y) = 2x + 5y over the domain D, we need to set up the integral limits and perform the integration. The domain D is defined as D = {(x, y) | 1 ≤ x ≤ 5, 2 ≤ y ≤ 4}.

The double integral is given by:

∬D f(x, y) dA = ∫₁˄₅ ∫₂˄₄ (2x + 5y) dy dx

To compute this integral, we first integrate with respect to y and then with respect to x.

∫₂˄₄ (2x + 5y) dy = [2xy + (5/2)y²]₂˄₄

Now we substitute the limits of y into this expression:

[2x(4) + (5/2)(4)²] - [2x(2) + (5/2)(2)²]

Simplifying further:

[8x + 8] - [4x + 5] = 4x + 3

Now we integrate this expression with respect to x:

∫₁˄₅ (4x + 3) dx = [2x² + 3x]₁˄₅

Substituting the limits of x into this expression:

[2(5)² + 3(5)] - [2(1)² + 3(1)]

Simplifying further:

[50 + 15] - [2 + 3] = 60

Therefore, the double integral of f(x, y) over the domain D is equal to 60.

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∫ (16x^3 + 7x^2 + 125x + 100) dx = (2/3)ln|6x + 25| + C1 + C2 where C1 and C2 are constants of integration.

To solve the given problem, let's break it down step by step.

We are given the expression:

∫ (24 + 25x^2) dx

Next, we need to perform the partial fraction decomposition on the integrand.

Let the decomposition be:

(24 + 25x^2) = (a/(6x + d)) + ((bx + c)/(x^2 + 25))

We need to find the values of a, b, c, and d.

Multiplying both sides by the denominator (6x + d)(x^2 + 25), we get:

(24 + 25x^2) = a(x^2 + 25) + (bx + c)(6x + d)

Expanding the right side, we have:

24 + 25x^2 = ax^2 + 25a + (6bx^2 + dx + 6cx^3 + cx^2)

Comparing the coefficients of like terms on both sides, we get the following equations:

a + 6c = 0 (coefficient of x^3 terms)

25a + d = 0 (coefficient of x^2 terms)

6b = 0 (coefficient of x^2 terms)

25a + 6c = 24 (constant term)

d = 25 (constant term)

Solving these equations, we find:

c = 0

b = 0

a = 4

d = 25

Therefore, the partial fractions decomposition is:

(24 + 25x^2) = (4/(6x + 25)) + (0/(x^2 + 25))

Now, we can integrate term by term:

∫ (16x^3 + 7x^2 + 125x + 100) dx = ∫ (4/(6x + 25)) dx + ∫ (0/(x^2 + 25)) dx

Evaluating the integrals, we get:

∫ (4/(6x + 25)) dx = (2/3)ln|6x + 25| + C1

∫ (0/(x^2 + 25)) dx = C2

Finally, combining the results, we have:

∫ (16x^3 + 7x^2 + 125x + 100) dx = (2/3)ln|6x + 25| + C1 + C2

Note: C1 and C2 are constants of integration.

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No, the students will not have a party if Mrs. Morton rewards them 31 additional times.  Currently, the marble jar has 24 marbles. Each time Mrs. Morton rewards the students for good behavior, she adds 33 marbles to the jar.

So, if she rewards them 31 more times, the total number of marbles added to the jar would be 31 * 33 = 1023 marbles. Adding this to the initial 24 marbles, the total number of marbles in the jar would be 24 + 1023 = 1047 marbles. Since the condition for having a party is to have 100 or more marbles in the jar, the students would indeed have a party because 1047 is greater than 100.

However, there seems to be a discrepancy in the question. It states that the marble jar currently has 24 marbles, but the condition for having a party is to have 100 or more marbles. Therefore, based on the information given, the students should already be eligible for a party since they have 24 marbles, which is greater than 100. Adding 31 more sets of 33 marbles would only increase the number of marbles in the jar further. Hence, No, the students will not have a party if Mrs. Morton rewards them 31 additional times.

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To find the volume of the solid obtained by rotating the region bounded by y = e^2x, y = 0, x = -1, and x = 3 around the y-axis, we can use the method of cylindrical shells.

The height of each cylindrical shell will be the difference between the two functions: y = e^2x and y = 0. The radius of each cylindrical shell will be the x-coordinate of the corresponding point on the curve y = e^2x.Let's set up the integral to find the volume:[tex]V = ∫[a,b] 2πx * (f(x) - g(x)) dx[/tex]

Where a and b are the x-values that define the region (in this case, -1 and 3), f(x) is the upper function (y = e^2x), and g(x) is the lower function (y = 0).V = ∫[-1,3] 2πx * (e^2x - 0) dxSimplifyingV = 2π ∫[-1,3] x * e^2x dxTo evaluate this integral, we can use integration by parts. Let's assume u = x and dv = e^2x dx. Then, du = dx and v = (1/2)e^2x.Applying the integration by parts formula

[tex]∫ x * e^2x dx = (1/2)xe^2x - ∫ (1/2)e^2x dx= (1/2)xe^2x - (1/4)e^2x + C[/tex]Now, we can evaluate the definite integral:

[tex]V = 2π [(1/2)xe^2x - (1/4)e^2x] evaluated from -1 to 3V = 2π [(1/2)(3)e^2(3) - (1/4)e^2(3)] - [(1/2)(-1)e^2(-1) - (1/4)e^2(-1)]V = 2π [(3/2)e^6 - (1/4)e^6] - [(-1/2)e^(-2) - (1/4)e^(-2)][/tex]Simplifying further

[tex]V = 2π [(3/2)e^6 - (1/4)e^6] - [(-1/2)e^(-2) - (1/4)e^(-2)]V = 2π [(3/2 - 1/4)e^6] - [(-1/2 - 1/4)e^(-2)]V = 2π [(5/4)e^6] - [(-3/4)e^(-2)]V = (5/2)πe^6 + (3/4)πe^(-2)[/tex]Therefore, the volume of the solid obtained by rotating the region bounded by y = e^2x, y = 0, x = -1, and x = 3 around the y-axis is (5/2)πe^6 + (3/4)πe^(-2) cubic units.

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The solution to the given inequality is x > 1.

Here's the process:

Distribute the 4 to the terms inside the parentheses:

4 · 2 · -4 · x < -x + 5

Simplify:

8 - 4x < -x + 5

Rearrange the equation to isolate the variable terms on one side and the constant terms on the other side.

In this case, we'll move the -x term to the left side:

-4x + x < 5 - 8

Simplify:

-3x < -3

Divide both sides of the inequality by -3.

Remember that when dividing by a negative number, the direction of the inequality symbol flips:

(-3x)/(-3) > (-3)/(-3)

Simplify:

x > 1

So, the solution to the given inequality is x > 1.

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Translation =

Someone to explain to me how to solve this operation by steps 4(2-x) <-x+5

The divergence of a vector field F = <P, Q, R> in three-dimensional space (R³) is defined as the scalar function that represents the rate at which the field "spreads out" or "diverges" from a given point.

The divergence of a vector field F = <P, Q, R> is denoted by ∇ · F, where ∇ (del) represents the gradient operator. The divergence is a scalar function that calculates the change in the flux of the vector field across an infinitesimally small volume around a point. It measures how the vector field expands or contracts at each point in space.

Mathematically, the divergence of F is given by the sum of the partial derivatives of its components with respect to their corresponding variables: ∇ · F = (∂P/∂x) + (∂Q/∂y) + (∂R/∂z). Geometrically, the divergence represents the density of the field's source or sink at a particular point. Positive divergence indicates an outward flow, while negative divergence implies an inward flow.

The divergence theorem, also known as Gauss's theorem, establishes a relationship between the divergence and the flux of a vector field through a closed surface. It states that the flux of a vector field across a closed surface is equal to the volume integral of the field's divergence over the region enclosed by the surface.

In summary, the divergence of a vector field in three-dimensional space provides information about the rate at which the field diverges or converges at each point. It is a scalar function obtained by summing the partial derivatives of the field's components. The divergence theorem relates the divergence to the flux of the vector field through a closed surface.

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The population of a small city with an initial population of 71,000 will reach approximately 97,853 people in 25 years if it grows at an annual rate of 2.5%.

It will take approximately 14.33 years for the population to reach 117,000 people under the same growth rate.

Population in 25 years = Initial population * (1 + Growth rate)^Number of years.

Substituting the values, we have

[tex]71,000 * (1 + 0.025)^{25[/tex] ≈ 97,853 people.

Number of years = log(Population / Initial population) / log(1 + Growth rate).

Substituting the values, we have

log(117,000 / 71,000) / log(1 + 0.025) ≈ 14.33 years.

Population in 25 years = Initial population * e^(Growth rate * Number of years).

Substituting the values, we have

71,000 * [tex]e^{(0.025 * 25)[/tex] ≈ 98,758 people.

Number of years = log(Population / Initial population) / (Growth rate).

Substituting the values, we have

log(117,000 / 71,000) / (0.025) ≈ 14.54 years.

Population in 25 years = Initial population + (Growth rate * Number of years).

Substituting the values, we have

71,000 + (2,710 * 25) = 141,750 people.

Number of years = (Population - Initial population) / Growth rate.

Substituting the values, we have

(117,000 - 71,000) / 2,710 ≈ 17.01 years

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The radius of convergence for the series[tex](n^3x^n)/3^n[/tex].

The radius of convergence of a power series can be determined using two common techniques: the ratio test and the root test. Applying the ratio test to the given series, we take the limit as n approaches infinity of the absolute value of the ratio of consecutive terms, [tex](n+1)^3x^(n+1)/(3^(n+1)) (n^3x^n)/(3^n)[/tex]. Simplifying the expression, we get the limit of (n+1)³/3n³ * |x|. As n tends to infinity, the limit evaluates to |x|/3. To ensure convergence, the absolute value of |x|/3 must be less than 1. Therefore, |x| < 3, and the radius of convergence is 1/3.

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The work done against gravity is given by(Weight of the Can + 3p) x g x H = (10lbs + 3p) x 32.2 ft/s² x HAnswer: (10lbs + 3p) x 32.2 ft/s² x H.

A 10-man carries a can of paint that encircles a site with radius R. The height that the man carries the paint to complete a revolution is H. Suppose there is a hole in the can of paint, and 3lbs of paint spill out of the can during the man's ascent.  The weight of the paint that the man is carrying is calculated using the density of the paint multiplied by the volume of the paint. We have a volume of 3lbs. Let's say the density of the paint is p. Then the weight of the paint the man is carrying is 3p.Therefore, the total weight that the man is carrying is (Weight of the Can + 3p) lbsThe work done by the man against gravity is given by:Work done against gravity = mghwhere m is the mass of the man and the paint can, and g is the acceleration due to gravity.Work done against gravity = (Weight of the Can + 3p) x g x HWhen the man carries the can of paint around the site, the work done against gravity is zero because the height of the paint can is not changing. Hence the work done against gravity is equal to the work done in lifting the can of paint from the ground to the top of the site.

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The two numbers whose sum is 495 and follows the required conditions are 450 and 45.

Let the two numbers be "AB0" and "AB," where A and B are digits, and 0 represents a zero.

The sum of the two numbers is equal to 495.

The last digit of one of the numbers is zero, which means the first number is a multiple of 10, so we can rewrite it as 10x.

If you cross off the zero from the first number, you get the second number, so the second number is AB.

Now, let's substitute the values into the equation:

10x + x = 495

Now, add the like terms, and we get,

11x = 495

Divide both sides by 11, and we get,

x = 495/11

x = 45

And, 45 times 10 is 450.

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The complete question:

The sum of the two numbers is equal to 495.

The last digit of one of them is zero.

If you cross the zero off the first number you will get the second.

What are the numbers?

The equation of the tangent line to the graph of the function f(x) = 5x + 3 at the point (2, 13) is given by y = 5x + 3.

The equation of the tangent line to the graph of the function f(x) = 5x + 3 at the point (2, 13) can be obtained using the derivative of the function f(x).

Therefore, let's first differentiate the function f(x) as follows:f(x) = 5x + 3dy/dx = 5

The slope of the tangent line to the graph of the function f(x) at the point (2, 13) is equal to the value of the derivative of the function evaluated at x = 2.dy/dx = 5 at x = 2.dy/dx = 5 at x = 2.

Now, we can use the slope of the tangent line and the given point (2, 13) to find the equation of the tangent line using the point-slope form of a linear equation. y - y1 = m(x - x1)

Here, y1 = 13, x1 = 2, and m = 5. Plugging these values, we get;y - 13 = 5(x - 2)Multiplying out the right side;y - 13 = 5x - 10Adding 13 to both sides, we get; y = 5x + 3.

Hence, the equation of the tangent line to the graph of the function f(x) = 5x + 3 at the point (2, 13) is given by y = 5x + 3.

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A study compared the mean daily leisure time of adults with no children under the age of 18 to the mean daily leisure time of adults with children. The sample of adults with no children had a mean leisure time of 574 hours with a standard deviation of 247 hours, while the sample of adults with children had a mean leisure time of 4.26 hours with a standard deviation of 162 hours. We need to construct a 95% confidence interval for the mean difference in leisure time between these two groups.

To construct a confidence interval for the mean difference in leisure time, we can use the formula: (X1 - X2) ± t * √((s1^2 / n1) + (s2^2 / n2)), where X1 and X2 are the sample means, s1 and s2 are the sample standard deviations, n1 and n2 are the sample sizes, and t is the t-score corresponding to the desired confidence level and degrees of freedom.

From the given information, we have X1 = 574, X2 = 4.26, s1 = 247, s2 = 162, n1 = n2 = 40, and the degrees of freedom are (n1 - 1) + (n2 - 1) = 78. Using the t-table or a statistical software, we can find the t-score for a 95% confidence level with 78 degrees of freedom.

Once we have the t-score, we can calculate the lower and upper bounds of the confidence interval. The result will provide a range of values within which we can be 95% confident that the true mean difference in leisure time between adults with and without children falls.

Interpreting the confidence interval, we can say that we are 95% confident that the true mean difference in leisure time between adults with no children and adults with children falls within the calculated range. This interval allows us to make inferences about the population based on the sample data, providing a measure of uncertainty around the estimate.

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The exact answer to the given integral is (361π³)/(722*57²)cot(π) + (361π²)/(722*57²)ln|cos(π/57)|.

To evaluate the integral 0 to π/57 of x tan²(19x)dx, we can use integration by parts. Let u = x and dv = tan²(19x)dx. Then du/dx = 1 and v = (1/38)(19x tan(19x) - ln|cos(19x)|).

Using the formula for integration by parts, we have:

∫(x tan²(19x))dx = uv - ∫vdu

= (1/38)x(19x tan(19x) - ln|cos(19x)|) - (1/38)∫(19x tan(19x) - ln|cos(19x)|)dx

= (1/38)x(19x tan(19x) - ln|cos(19x)|) - (1/38)[(-1/19)ln|cos(19x)| - x] + C

= (1/722)x(361x tan(19x) + 19ln|cos(19x)| - 722x) + C

Thus, the exact value of the integral from 0 to π/57 of x tan²(19x)dx is:

[(1/722)(π²/(57²))(361π cot(π)) + (1/722)(361π ln|cos(π/57)|)] - [(1/722)(0)(0)]

= (361π³)/(722*57²)cot(π) + (361π²)/(722*57²)ln|cos(π/57)|

Therefore, the exact answer to the given integral is

(361π³)/(722*57²)cot(π) + (361π²)/(722*57²)ln|cos(π/57)|.

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To find the arc length for the curve y = 3x² − (1/24) ln x with the starting point p0(1, 3), we need to integrate the expression √(1 + (dy/dx)²) with respect to x over the desired interval. The resulting value will give us the arc length of the curve.

To find the arc length, we need to integrate the expression √(1 + (dy/dx)²) with respect to x over the given interval. In this case, the given function is y = 3x²− (1/24) ln x. To compute the derivative dy/dx, we differentiate each term separately. The derivative of 3x² is 6x, and the derivative of (1/24) ln x is (1/24x). Squaring the derivative, we get (6x)² + (1/24x)².

Next, we substitute this expression into the arc length formula:

∫√(1 + (dy/dx)²) dx. Plugging in the squared derivative expression, we have ∫√(1 + (6x)² + (1/24x)²) dx. To evaluate this integral, we need to employ appropriate integration techniques, such as trigonometric substitutions or partial fractions.

By integrating the expression, we obtain the arc length of the curve between the starting point p0(1, 3) and the desired interval. The resulting value represents the distance along the curve between these two points, giving us the arc length for the given curve.

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Answer:

The difference between two matrices of the same size is calculated by subtracting the corresponding elements of the two matrices.

Let’s apply this to matrices A and B:

A - B = [3 -1; 2 0; -3 3] - [3 3; -5 4; -4 2] = [0 -4; 7 -4; 1 1]

So the correct answer is B) Matrix consisting of 3 rows and 2 columns. Row 1 shows 0 and negative 4, row 2 shows 7 and negative 4, and row 3 shows 1 and 1.

The rectangle with dimensions 8 units by 9 units has the maximum area among all rectangles with a perimeter of 34.

To find the rectangle with the maximum area among all rectangles with a perimeter of 34, we need to consider the relationship between the dimensions of the rectangle and its area. Let's assume the length of the rectangle is L and the width is W. The perimeter of a rectangle is given by the formula P = 2L + 2W.

In this case, the perimeter is given as 34. Therefore, we have the equation 2L + 2W = 34. We can simplify this equation to L + W = 17.

To find the maximum area, we need to maximize the product of the length and width. Since L + W = 17, we can rewrite it as L = 17 - W and substitute it into the area formula A = L * W.

Now we have A = (17 - W) * W. To find the maximum area, we can take the derivative of A with respect to W, set it equal to zero, and solve for W. After calculating, we find that W = 9.

Substituting the value of W back into the equation L = 17 - W, we get L = 8. Therefore, the rectangle with dimensions 8 units by 9 units has the maximum area among all rectangles with a perimeter of 34.

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a) To find the limit as x approaches -2, you would look at the behavior of the graph as x gets closer and closer to -2 from both sides.

b) To find the limit as x approaches 3 from the right (x → 3+), you would consider the behavior of the graph as x approaches 3 from values greater than 3.  

c) To find the limit as x approaches -3, you would examine the behavior of the graph as x gets closer and closer to -3 from both sides.  

d) To find the value of f(-2), you would look at the point on the graph where x = -2 and determine the corresponding y-coordinate.  

e) To find the limit as x approaches 7, you would analyze the behavior of the graph as x gets closer and closer to 7 from both sides.  

f) To find the limit as x approaches -∞ (negative infinity), you would observe the behavior of the graph as x becomes increasingly negative.  

g) To find the limit as x approaches ∞ (infinity), you would observe the behavior of the graph as x becomes increasingly large.  

h) To find the value(s) of x when f(x) = -1, you would look for the point(s) on the graph where the y-coordinate is -1.  

i) To find the limit as x approaches 2 from the left (x → 2-), you would consider the behavior of the graph as x approaches 2 from values less than 2.

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Answer:

  47

Step-by-step explanation:

Given 3 persons per horse, 4 sheep per cow, 3 ducks per person, you want to know if the total number of people, horses, sheep, cows, and ducks can be any of 41, 47, 59, 61, or 66.

Using {d, p, h, s, c} for numbers of {ducks, people, horses, sheep, cows}, the given ratios are ...

We can combine the first and last of these to d : p : h = 9 : 3 : 1.

In terms of horses, the total number of horses, people, and ducks will be ...

  h(1 + 3 + 9) = 13h

In terms of cows, the total number of sheep and cows will be ...

  c(1 + 4) = 5c

Then the total Hamlet population will be (13h +5c).

We need to find the number on the given list that cannot be expressed as this sort of sum.

In the attachment, we do that by subtracting multiples of 13 from the offered choice, and seeing if any remainders are divisible by 5. The cases where subtracting a multiple of 13 gives a multiple of 5 are highlighted.

Only 47 cannot be a total of people, horses, sheep, cows, and ducks.

Based on the above analysis, the numbers that could not possibly be the total number of people, horses, sheep, cows, and ducks in Hamlet are: 41, 47, 59, and 61.

To determine which of the given numbers could not possibly be the total number of people, horses, sheep, cows, and ducks in Hamlet, we need to check if they satisfy the given ratios between these animals and people.

Given ratios:

3 people for each horse

4 sheep for each cow

3 ducks for each person

Let's evaluate each option:

a) 41:

To satisfy the ratios, the number of horses would need to be a multiple of 3. However, 41 is not divisible by 3, so it is not possible.

b) 47:

Again, the number of horses would need to be a multiple of 3 to satisfy the ratios. 47 is not divisible by 3, so it is not possible.

c) 59:

Similarly, 59 is not divisible by 3, so it is not possible.

d) 61:

Once again, 61 is not divisible by 3, so it is not possible.

e) 66:

In this case, the number of horses would be 66 / 3 = 22. If we have 22 horses, we would need 22 * 3 = 66 people, which satisfies the ratio. However, we also need to check the other ratios. If we have 22 horses, we would need 22 * 4 = 88 sheep and 66 * 3 = 198 ducks. The number of cows can be any number since there is no ratio involving cows. Therefore, 66 is possible as the total number.

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The marginal average cost function is given by c'(x) = -168/x², where x represents the quantity produced or the level of output.

To find the marginal average cost function, we first need to find the average cost function. The average cost is given by C(x)/x, where C(x) is the cost function and x is the quantity produced.

Average Cost = C(x)/x = (168 + 7.7x)/x

To find the marginal average cost, we take the derivative of the average cost function with respect to x.

C'(x) = (d/dx)(168 + 7.7x)/x

Using the quotient rule, we differentiate the numerator and denominator separately:

C'(x) = [(0 + 7.7)(x) - (168 + 7.7x)(1)]/x²

Simplifying the numerator:

C'(x) = (7.7x - 168 - 7.7x)/x²

The x terms cancel out:

C'(x) = -168/x²

Therefore, the marginal average cost function is c'(x) = -168/x²

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The question is -

Find the marginal average cost function if cost and revenue are given by C(x) = 168 + 7.7x and R(x) = 5x - 0.06x².

The marginal average cost function is c'(x) =

Answer:

9440

Step-by-step explanation:

A percentage is a ratio or a number expressed in the form of a fraction of 100. Percentages are often used to express a part of a total.

If 25% of the people in a small town are voters and there are 2360 voters, then we can think of it like this:

So, if 0.25 of the population is equal to 2360 voters, then we can find the total population by dividing 2360 by 0.25:

Therefore, the population of the town is 9440.

To ensure that no member is scheduled to attend two meetings at the same time, a minimum of 4 different meeting times must be used for the six committees.

Given the membership of the six committees as stated in the table:

C1: Sarah, Rahan, Arman
C2: Zaba, Tim, Arman
C3: Sarah, Rohan
C4: Rohan, Zaba, Tim
C5: Sarah, Tim, Arman
C6: Rohan, Tim, Arman

We can analyze the overlapping members and organize the committees into different meeting times. For example:

Meeting Time 1: C1 and C3 (share Sarah)
Meeting Time 2: C2 and C4 (share Tim)
Meeting Time 3: C5 (Arman, but Sarah and Tim are occupied)
Meeting Time 4: C6 (Rohan and Arman, but Tim is occupied)

Thus, a minimum of 4 different meeting times must be used to ensure no member has a scheduling conflict.

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The most general function f(x, y, z) such that f = ∇f is given by:

f(x, y, z) = xy^2 + h(y, z) + g(x, z)

where h(y, z) and g(x, z) can be any arbitrary functions of their respective variables.

To determine the most general function f such that f = ∇f, find a scalar function f(x, y, z) that satisfies the condition.

The vector field f(x, y, z) = y^2 + (2xy + e^z)j + ezyk can be written as:

f(x, y, z) = ∇f(x, y, z)

where ∇ represents the gradient operator. The gradient of a scalar function f(x, y, z) is given by:

∇f(x, y, z) = (∂f/∂x)i + (∂f/∂y)j + (∂f/∂z)k

Comparing the vector field f(x, y, z) with the gradient ∇f(x, y, z), we can equate the corresponding components:

∂f/∂x = y^2

∂f/∂y = 2xy + e^z

∂f/∂z = ezy

To solve these equations, we integrate each equation with respect to the corresponding variable:

∫∂f/∂x dx = ∫y^2 dx

∫∂f/∂y dy = ∫(2xy + e^z) dy

∫∂f/∂z dz = ∫ezy dz

Integrating each equation yields:

f(x, y, z) = xy^2 + h(y, z) + g(x, z)

where h(y, z) and g(x, z) are arbitrary functions of their respective variables.

Therefore, the most general function f(x, y, z) such that f = ∇f is given by:

f(x, y, z) = xy^2 + h(y, z) + g(x, z)

where h(y, z) and g(x, z) can be any arbitrary functions of their respective variables.

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The graph of y = cosech(x) in the range x = -5 to x = 5 is a hyperbolic function that approaches zero as x approaches positive or negative infinity.

To sketch the graph of y = cosech(x) in the range x = -5 to x = 5, we can start by understanding the behavior and properties of the cosech(x) function. Cosech(x), also known as the hyperbolic cosecant function, is defined as the reciprocal of the hyperbolic sine function: cosech(x) = 1/sinh(x). The hyperbolic sine function sinh(x) can be expressed as (e^x - e^(-x))/2, where e represents the base of the natural logarithm. By taking the reciprocal of this expression, we obtain the cosech(x) function.

In the given range of x = -5 to x = 5, we can observe that as x approaches positive or negative infinity, the value of cosech(x) approaches zero. This can be understood from the definition of cosech(x) as the reciprocal of sinh(x), which grows infinitely large as x approaches infinity or negative infinity. Therefore, cosech(x) approaches zero in the extremes of the range. Additionally, the graph of cosech(x) will have vertical asymptotes at x = 0 since the denominator of the expression becomes zero when x approaches 0. As x gets closer to 0 from either side, the values of cosech(x) become very large in magnitude, approaching positive or negative infinity.

Considering these properties, we can sketch the graph of cosech(x) in the given range as follows: Starting from x = -5, we observe that the value of cosech(x) is very close to zero. As x approaches 0, the graph rapidly increases in magnitude, reaching large positive or negative values. Then, as x moves away from 0 towards the endpoints of the range (x = -5 and x = 5), the values of cosech(x) gradually approach zero again. To accurately depict the graph, it is recommended to plot several points within the range and connect them smoothly, keeping in mind the behavior and shape of the cosech(x) function.

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the two positive real numbers with the smallest possible sum and a product of 86 are √86 and √86.

The two positive real numbers that have a product of 86 and the smallest possible sum are approximately 9.2736 and 9.2736.Let's assume the two numbers are x and y. We know that the product of the two numbers is 86, so we have the equation xy = 86. To find the smallest sum of x and y, we need to minimize their sum, which is x + y.We can solve for y in terms of x by dividing both sides of the equation xy = 86 by x:

y = 86/x.Now we can express the sum x + y as x + 86/x. To find the minimum value of this sum, we can take the derivative with respect to x and set it equal to zero:

d/dx (x + 86/x) = 1 - 86/x^2 = 0.

Solving this equation, we get x^2 = 86, which gives us x = sqrt(86) ≈ 9.2736. Substituting this value back into the equation y = 86/x, we find y ≈ 9.2736.

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[tex]f(x) = 5x + 6\ dx\ is (5/2)x^2 + 6x + C[/tex] is the indefinite integral.

To find the indefinite integral, we follow these steps:

Apply the power rule of integration.

The power rule states that the integral of x^n with respect to x, where n is any real number except -1, is (1/(n+1))x^(n+1) + C, where C is the constant of integration.

In this case, we have f(x) = 5x + 6, where the exponent of x is 1.

Integrate each term separately.

We apply the power rule of integration to each term in the function

f(x) = 5x + 6

The integral of 5x with respect to x is (5/2)x^2, and the integral of 6 with respect to x is 6x.

Note that when integrating a constant term, we simply multiply it by x.

Now, add the constant of integration.

Since the derivative of a constant is zero, the indefinite integral of any function will have an arbitrary constant added to it. We denote this constant as C.

In this case, we add C to the integrated function (5/2)x^2 + 6x to obtain the final result:

[tex](5/2)x^2 + 6x + C.[/tex]

Therefore, the indefinite integral of

[tex]f(x) = 5x + 6\ dx\ is (5/2)x^2 + 6x + C.[/tex]

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at the beginning there are 100 fish but after 10 days, there are approximately 331.65 fish in the population.

(a) To find how fast the volume is changing when one side of the cube is 7 cm, we can use the formula for the volume of a cube: V = s^3, where s is the side length. Differentiating both sides with respect to time, we have dV/dt = 3s^2(ds/dt). Plugging in the given values, s = 7 cm and ds/dt = 0.03 cm/min, we get dV/dt = 3(7^2)(0.03) = 4.41 cm^3/min.

(b) To find the population of fish after 10 days, we can integrate the given growth rate function P(t) = 2e^(0.027t) over the interval [0, 10]. The integral of P(t) gives us the total change in population over the interval. Evaluating the integral, we have ∫(2e^(0.027t)) dt = [2/(0.027)]e^(0.027t) + C, where C is the constant of integration. Substituting the limits of integration, we find [2/(0.027)]e^(0.027(10)) - [2/(0.027)]e^(0.027(0)) = [2/(0.027)]e^(0.27) - [2/(0.027)]e^(0) ≈ 331.65 fish.after 10 days, there are approximately 331.65 fish in the population.

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The area of the figure is 23.44 in².

The missing vertices is 14.

1. We have

Angle= 168

Radius= 6 inch

So, Area of sector

= 168 /360 x πr²

= 168/360 x 3.14 x 4 x 4

= 0.46667 x 3.14 x 16

= 23.44 in²

2. We know the Euler's Formula as

F + V= E + 2

we have, Edges= 37,

Faces = 25,

So, F + V= E + 2

25 + V = 37 + 2

25 + V = 39

V= 39-25

V = 14

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Answer:

The probability is 8/11

Step-by-step explanation:

I think the question is the probability the one you choose is to be blue or green.

The probability to be blue is 4/11.

The probability to be green is 4/11.

so the answer is 8/11.