Find a polynomial function with the following Zeros: 1+3i,0

The volume of the prism is 259 units³.

The volume of the prism can be calculated as follows:

volume of a prism = base area × height

The prism is a triangular base prism. The area of the base of the prism is 37 units² and the height of the prism is 7 units.

Therefore,

Base area of the prism = 37 units²

height  = 7 units

Hence,

volume of a prism = 37 × 7

volume of a prism = 259 units³

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The relative rate of change f′(t)/f(t) at t=1 can be found by first calculating the derivative of the function f(t) and evaluating it at t=1.

f(t) = ln(t^2 - 1)

f'(t) = 2t / (t^2 - 1)

f'(1) = 2 / (1^2 - 1) = 1

Next, we can evaluate f(1) and use the formula for relative rate of change:

f(1) = ln(1^2 - 1) = ln(0) = undefined

Therefore, the relative rate of change f′(1)/f(1) cannot be calculated.

The function f(t) is undefined at t=1 because ln(0) is undefined. This means that we cannot calculate the value of f(1) and hence, cannot determine the relative rate of change f′(1)/f(1).

This is an example of a situation where the relative rate of change cannot be determined due to the function being undefined or having a singularity at the point of interest.

It is important to be aware of such situations when dealing with calculus and to check for any potential issues with the function or point of interest before attempting to calculate the relative rate of change.

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The amount of the principal investment is the sum of $10,000. The Option D is correct.

The equation "A = P(1+0.0430t)" represents the amount of money earned on a savings account with 4.3% annual simple interest, where a is the amount after t years, p is the principal investment, and 0.043 is the interest rate.

Given that the amount after 12 years is equal to $15,160, we can use the equation to solve for the principal investment:

[tex]\sf A = P(1+0.0430t)[/tex]

[tex]\sf \$15160 = P(1+0.043\times12)[/tex]

[tex]\sf\$15160 = P(1 + 0.516)[/tex]

[tex]\sf \$15160= P \times 1.516[/tex]

[tex]\sf P = \dfrac{\$15160}{1.516}[/tex]

[tex]\sf P = \$10000[/tex].

Therefore, the amount of the principal investment is the sum of $10,000.

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His record should not be changed. The correct option is A

An individual who works for an employer pursuant to an employment contract, whether it be written or verbal, is referred to as an employee.

David is an hourly worker, and since his compensation is remaining the same, his employee earnings record shouldn't be altered. Even if he transfers to a different department, his hourly rate and rate of pay need to stay the same. The employee's record's department or job code may be the only thing to change in this scenario, but the earnings record itself is unaffected.

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System A has 2 real solutions. System B has do not have more than  2 real solutions. System C  has do not have more than  2 real solutions.

A real solution in algebra is  described simply as a solution to an equation that is a real number.

For system A The equation x² + y² = 17 represents a circle with center (0,0) and radius √17 and the x-axis  intersects two times same with the y-axis.

Therefore,  the system has 2 two real solutions. for System B:The equation y = x² - 7x + 10 represents a parabola with  vertex at (3.5, -1.25).

System C:The equation y = -2x² + 9 shows a parabola facing down with vertex at (0,9/2).

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The value of b = -3/2 and c = -5/4

To write the quadratic x² - 3x + 1 in the form (x + b)² + c, we can expand (x + b)² and compare it to the given expression:

(x + b)² = x² + 2bx + b²

Comparing this to the given expression x² - 3x + 1, we see that we need:

2bx = -3x, so b = -3/2

b² + c = 1, so substituting b = -3/2 gives:

(9/4) + c = 1

so c = 1 - 9/4

= 4/4 - 9/4

= -5/4

The quadratic x² - 3x + 1 can be written in the form (x - 3/2)² + ( - 5/4).

Therefore, the value of b = -3/2 and c = -5/4

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Given question is incomplete, the complete question is below

the quadratic x²-3x + 1 can be written in the form (x +b)² + c, where b and c are constants. what is b, c?

The probability that a randomly chosen student is a junior or has voted in the last presidential election is 0.8 or 80%.

To find the probability that a randomly chosen student is a junior or has voted in the last presidential election, we can use the formula

P(A or B) = P(A) + P(B) - P(A and B)

where A and B are two events.

Let's assume that there are 1000 students in the population, and 400 of them are juniors and 600 of them have voted in the last presidential election. Furthermore, let's assume that 200 students are both juniors and have voted in the last presidential election.

Then, the probability that a randomly chosen student is a junior or has voted in the last presidential election is

P(junior or voted) = P(junior) + P(voted) - P(junior and voted)

= 400/1000 + 600/1000 - 200/1000

= 0.8

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-- The given question is incomplete, the complete question is

"If total number of students are 1000, and 400 of them are juniors and 600 of them have voted in the last presidential election. Furthermore, 200 students are both juniors and have voted in the last presidential election. Then find the probability that a randomly chosen student is a junior or has voted in the last presidential election?" --

The original number of friends planning the party was 25.

Let's assume the total number of friends originally planning the party is 'x'.

Initially, each friend would contribute an equal amount to raise $200. So the initial contribution per friend would be $200/x.

When five friends decided not to attend, the number of friends remaining is (x - 5). Now, each friend has to contribute $2.00 more than before.

So, the new contribution per friend is $200/(x - 5) + $2.

According to the given information, the new contribution is $2.00 more than the initial contribution:

$200/(x - 5) + $2 = $200/x

To solve this equation, we can eliminate the dollar signs and simplify:

200/(x - 5) + 2 = 200/x

Multiplying both sides of the equation by x(x - 5) to eliminate the denominators:

200x + 2x(x - 5) = 200(x - 5)

200x + 2x^2 - 10x = 200x - 1000

Rearranging the equation and simplifying:

2x^2 - 10x - 1000 = 0

Dividing the equation by 2:

x^2 - 5x - 500 = 0

Using the quadratic formula, we can find the values of x:

x = (-b ± √(b^2 - 4ac)) / (2a)

For our equation, a = 1, b = -5, and c = -500.

x = (-(-5) ± √((-5)^2 - 4(1)(-500))) / (2(1))

x = (5 ± √(25 + 2000)) / 2

x = (5 ± √2025) / 2

x = (5 ± 45) / 2

Simplifying further:

x1 = (5 + 45) / 2 = 50 / 2 = 25

x2 = (5 - 45) / 2 = -40 / 2 = -20

Since the number of friends cannot be negative, we discard x2 = -20 as an extraneous solution.

Therefore, the original number of friends planning the party was 25.

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The experimental probability is 29/100 and the number of workers that walk is 1102

The experimental probability of an event is based on the number of times the event has occurred during the experiment and the total number of times the experiment was conducted. Each possible outcome is uncertain and the set of all the possible outcomes is called the sample space.

The formula for this is given as;

P(E) = Number of occurrence of an event / Total number of times experiment is carried out.

a. Experimental probability = 29/100

b. To predict the total number of workers that walk, we can go as;

(29/100) * 3800 = 1102

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To identify the constant of proportionality based on a verbal description of the proportional relationship, we need to look for keywords that suggest proportionality.

These keywords include "directly proportional," "inversely proportional," "proportional to," or "varies directly/inversely." Once we have identified the keywords that suggest proportionality, we can then look for the quantities that are related and the specific values they take. From there, we can set up a proportion and solve for the constant of proportionality.

For example, if we are told that the time it takes to complete a task is directly proportional to the number of workers, and it takes 6 workers 4 hours to complete the task, we can set up the proportion: time/number of workers = constant of proportionality. Plugging in the values we have, we get 4/6 = k, which simplifies to 2/3 = k.

Therefore, the constant of proportionality in this case is 2/3, and we can use this to find the time it would take with a different number of workers.

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Answer: 45 in.

Step-by-step explanation:

Step 1:

Length × Width = Area           How to find Area

Step 2:

5 in. × 9 in.       Equation

Answer:

45 in.       Multiply

Therefore, the two positive numbers that satisfy the given requirements are 160 and 80.

To find two positive numbers that satisfy the given requirements, we can use algebra. Let x be the first number and y be the second number. Then, we can write the following equations:
x + 2y = 320   (the sum of the first and twice the second is 320)
xy = maximum   (the product is a maximum)
To solve for x and y, we can use the first equation to express x in terms of y:
x = 320 - 2y
Substitute this expression for x into the second equation:
(320 - 2y)y = maximum
To find the maximum product, we can take the derivative of this expression and set it equal to zero:
320 - 4y = 0
Solving for y, we get y = 80.
Substitute this value of y into the expression for x:
x = 320 - 2(80) = 160

Therefore, the two positive numbers that satisfy the given requirements are 160 and 80.

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Thus,  there are 60,949,324,800 different batting orders possible. The correct option is A.

The number of different batting orders for a 20-person baseball roster with 9 people in each batting order can be calculated using the concept of permutations. In this case, we have 20 players to choose from, and we need to arrange 9 of them in a specific order.

The formula for permutations is: P(n, r) = n! / (n - r)!, where n is the total number of items (20 players), r is the number of items to be arranged (9 players), and ! denotes the factorial of a number (the product of all positive integers up to that number).

Applying this formula for your problem:
P(20, 9) = 20! / (20 - 9)!

Calculating the factorials:
20! = 2,432,902,008,176,640,000
11! = 39,916,800

Now, divide the factorials:
P(20, 9) = 2,432,902,008,176,640,000 / 39,916,800

P(20, 9) = 60,949,324,800

So, there are 60,949,324,800 different batting orders possible. The correct option is A.

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5) There are 6.64 moles

6) There are 0.0093 moles

7) There are  0.35 moles

8) There are  154.4 moles

5) 1 mole of the substance contains 6.02 * 10^23 formula units

x moles contains 4.0 * 10^24 formula units

x = 4.0 * 10^24 formula units * 1/6.02 * 10^23 formula units

x = 6.64 moles

6)  1 mole of the substance contains 6.02 * 10^23 molecules

x moles contains 5.6 * 10^21 molecules

x = 5.6 * 10^21 molecules * 1/6.02 * 10^23 molecules

x = 0.0093 moles

7) 1 mole of the substance contains 6.02 * 10^23 formula units

x moles contains 2.13 * 10^23 molecules  formula units

x =  2.13 * 10^23  * 1/6.02 * 10^23

x = 0.35 moles

8)  1 mole of the substance contains 6.02 * 10^23 molecules

x moles contains 9.30 * 10^25 molecules

x =  9.30 * 10^25  * 1/6.02 * 10^23

x = 154.4 moles

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The factored function is given as follows:

[tex]x^4 + 2x^3 - 20x^2 + 64x - 32 = (x^2 + 6x - 4)(x^2 - 4x + 8)[/tex]

The function for this problem is defined as follows:

[tex]y = x^4 + 2x^3 - 20x^2 + 64x - 32[/tex]

The zeros are given as follows:

Hence the function is factored as follows:

[tex]x^4 + 2x^3 - 20x^2 + 64x - 32 = (ax^2 + bx + c)(x - 2 + 2i)(x - 2 - 2i)[/tex]

[tex]x^4 + 2x^3 - 20x^2 + 64x - 32 = (ax^2 + bx + c)(x^2 - 4x + 8)[/tex]

[tex]x^4 + 2x^3 - 20x^2 + 64x - 32 = ax^4 + (-4 + b)x^3 + \cdots + 8c[/tex]

Hence the value of a is given as follows:

a = 1.

The value of b is given as follows:

-4 + b = 2

b = 6.

The value of c is given as follows:

8c = -32

c = -4.

Hence the factored expression is of:

[tex]x^4 + 2x^3 - 20x^2 + 64x - 32 = (x^2 + 6x - 4)(x^2 - 4x + 8)[/tex]

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Answer:

368π units³

Step-by-step explanation:

diameter = 2 X radius

Volume of cylinder = π r ² h

=  π (8/2) ² (23)

= π (4)² (23)

= 368π units³

For a given data set, the confidence interval will be wider for a 95% confidence level than for a 90% confidence level.

A confidence interval is a range within which we expect the true population parameter (e.g., mean or proportion) to fall, based on our sample data. The confidence level represents the probability that the confidence interval contains the true population parameter. A higher confidence level means we are more certain that the interval captures the true value. To achieve a higher confidence level (e.g., 95% instead of 90%), we need to include a larger range of values in the confidence interval.

This is because we are trying to be more certain that the interval contains the true population parameter. The width of the confidence interval is determined by the margin of error, which depends on the standard deviation, sample size, and the chosen confidence level (represented by the critical value, often denoted as "z" or "t"). As we increase the confidence level, the critical value increases, resulting in a larger margin of error and a wider confidence interval.

In summary, the confidence interval will be wider for a 95% confidence level than for a 90% confidence level because we need to include more values in the interval to be more certain that it contains the true population parameter.

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Francisca prefers less rainfall, she might choose City B, as it generally has fewer rainy days during the two-week period.

Here are the results for the number of rainy days during a two-week period over the past 10 years for the two cities:

City A:

Year 1: 8 rainy days

Year 2: 10 rainy days

Year 3: 7 rainy days

Year 4: 9 rainy days

Year 5: 6 rainy days

Year 6: 10 rainy days

Year 7: 8 rainy days

Year 8: 9 rainy days

Year 9: 7 rainy days

Year 10: 6 rainy days

City B:

Year 1: 4 rainy days

Year 2: 5 rainy days

Year 3: 6 rainy days

Year 4: 4 rainy days

Year 5: 5 rainy days

Year 6: 7 rainy days

Year 7: 3 rainy days

Year 8: 6 rainy days

Year 9: 5 rainy days

Year 10: 4 rainy days

Based on this information, Francisca can compare the number of rainy days between the two cities to make her decision. If she prefers less rainfall, she might choose City B, as it generally has fewer rainy days during the two-week period. However, other factors such as temperature, attractions, or personal preferences may also influence her decision.

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The radius of convergence of the power series is given by R. The radius of convergence of the power series sum _(c_n) x^6n is R^(1/6).

To see why this is true, note that the power series sum _(c_n) x^6n can be written as the original power series sum _(c_n) (x^6)^n. Since the original power series has radius of convergence R, the series (x^6)^n has radius of convergence R^(1/6).

By the theorem on product of power series, the product of these two power series will have a radius of convergence equal to the minimum of the radii of convergence of the two series, which is R^(1/6). Thus, the radius of convergence of the power series sum _(c_n) x^6n is R^(1/6).

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The radius of convergence of the power series is given by R. The radius of convergence of the power series sum _(c_n) x^6n is R^(1/6).

To see why this is true, note that the power series sum _(c_n) x^6n can be written as the original power series sum _(c_n) (x^6)^n. Since the original power series has radius of convergence R, the series (x^6)^n has radius of convergence R^(1/6).

By the theorem on product of power series, the product of these two power series will have a radius of convergence equal to the minimum of the radii of convergence of the two series, which is R^(1/6). Thus, the radius of convergence of the power series sum _(c_n) x^6n is R^(1/6).

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The population density of Kansas in people per square mile is 35.7.

From the given data table, we can see that data of different states are given with their population in the year 2020 and area in mile square. To find the population density of Kansas, we require :

Population of Kanas = 2,937,880

Area of Kanas = 82,278.36

Population density = Population / Area

Substituting values we get,

Population density = 2937880/82278.36

Population density = 35.7065941 people per square mile

Rounding to the nearest tenth we get,

Population density = 35.7 people per square mile

Therefore, Population density of Kansas in people per square mile is 35.7.

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Answer:

-1 ± 2√10

Step-by-step explanation:

first of all, do -2 on top divided by 2 on bottom to get 1st part of answer -1.

now (2√40) / 2 = 1√40 which just equals √40.

√40 = √(4 X 10) = √4 X √10 = 2 X √10 = 2√10.

so our final answer becomes -1 ± 2√10

111 visitors expect to buy more than one costume.

Out of 86 + 145 + 17 = 248 visitors, 17 bought more than one costume.

So, the proportion of visitors buying more than one costume is 17/248.

To estimate the number of visitors expected to buy more than one costume next week,

we can multiply this proportion by the expected number of visitors:

17/248 * 1600 ≈ 111

Therefore, we would expect about 111 visitors to buy more than one costume next week.

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he inverse Laplace transform of f(s) is [tex]6(t-1)e^{(-6t)[/tex].

The inverse Laplace transform of f(s) = 6 / (s² + 12s + 36) first need to factor the denominator of f(s):

s² + 12s + 36 = (s + 6)²

We can rewrite f(s) as:

f(s) = 6 / [(s + 6)²]

The Laplace transform of the function [tex]6te^{(-6t)[/tex] has the Laplace transform:

[tex]L{6te^{(-6t)}[/tex] = 6 / (s + 6)²

The inverse Laplace transform of f(s), we get:

[tex]L^{-1}{f(s)}[/tex] =[tex]L^{-1}{6 / [(s + 6)^2]}[/tex]

= [tex]L^{-1}{6te^{(-6t)}[/tex]

= [tex]6(t-1)e^{(-6t)[/tex]

The inverse Laplace transform of f(s) is [tex]6(t-1)e^{(-6t)[/tex].

The denominator of f(s) before we can compute the inverse Laplace transform of f(s) = 6 / (s2 + 12s + 36):

s² + 12s + 36 = (s + 6)²

F(s) may be rewritten as f(s) = 6 / [(s + 6)2].

The function 6te(-6t)'s Laplace transform has the following properties:

[tex]L{6te^{(-6t)}[/tex]= 6 / (s + 6)²

The inverse Laplace transform to the function f(s) we obtain:

L-1f(s) = L-16 / [(s + 6)²]

= L-16te(-6t)

= 6(t-1)e(-6t).

6(t-1)e(-6t) is the inverse Laplace transform of the function f(s).

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Answer: I think its 9 i could be wrong

Step-by-step explanation:

Answer:

Answer C.   x=10

Step-by-step explanation:

Similar triangles

Given that the base lines are parallel, the base angles will be corresponding angles for the transversal and will be congruent.  If one allows the up-down lines to continue to an intersection, one could form several triangles, all of which would be "Similar" to each other, due to their Angle-Angle congruence.

Similar triangles have all corresponding angles congruent between their triangles, and a consequence, all corresponding side-lengths between two triangles form a common proportion.

In other words, the ratio of the left side-length to the right side length is the same for both triangles.

Proportions

Despite that we don't actually have any full triangles, this concept extends for portions of a side length, so long as the bases are parallel.

So, since the ratio of the left side-length to the right side length is the same for both triangles, we can set up the following equation because both ratios are equal:

[tex]\dfrac{short~left~side}{long~left~side}=\dfrac{short~right~side}{long~right~side}[/tex]

[tex]\dfrac{6}{15}=\dfrac{x}{25}[/tex]

Solving a one-variable equation

From here, we're solving a single variable equation, where the variable only shows up once.  To solve for x, we need to disconnect the "dividing by 25" from it.  To undo that, we apply the opposite operation: multiplication.

Multiply both sides of the equation by 25...

[tex]\dfrac{6}{15}*25=\dfrac{x}{25}*25[/tex]

Notice on the right side of the equation that x is divided by 25, and then immediately multiplied by 25.  This will bring us right back to the value of x.

[tex]\dfrac{6}{15}*25=x[/tex]

Computing without a calculator

On the left side of the equation, to calculate it without a calculator, we could factor each number, and cancel common factors between the numerator and denominator:

[tex]\dfrac{2*3}{3*5}*5*5=x[/tex]

Notice that there is a 3 in the numerator and denominator.  Since there is no multiplication, this is effectively starting with 2, multiplying by 3, and then immediately dividing by 3, which will just bring us back to 2, before dividing by 5.  So, the 3s cancel, as collectively, they won't change the value of 2.

[tex]\dfrac{2}{5}*5*5=x[/tex]

Now, we have the same process with the 5s.  2 is first divided by 5, and then immediately multiplied by 5 (before being multiplied by another 5).  The division by 5 and the first multiplication by 5 will cancel, as they collectively won't change the value of the 2.

[tex]2*5=x[/tex]

Lastly, 2*5 is 10

[tex]10=x[/tex]

If you were allowed to use a calculator to calculate it, then that simplifies the work to getting that answer.

Answer:

the answer will be -3

Step-by-step explanation:

Answer: 14,358 cubic feet

Step-by-step explanation:

Volume of hemisphere = 0.5 x volume of sphere

Volume of hemisphere = 0.5 x 4/3 pi r^3

Volume of hemisphere = 0.5 x 4/3 pi 19^3

Volume of hemisphere = 0.5 x 4/3 pi 6859

Volume of hemisphere ≅ 14,358 cubic feet

Answer:

1257cm²

Step-by-step explanation:

L'aire d'un cercle = [tex]\pi[/tex]r²

=  [tex]\pi[/tex][tex]\frac{d}{2}[/tex]²

=  [tex]\pi[/tex][tex]\frac{40cm}{2}[/tex]²

=  [tex]\pi[/tex](20cm)²

=  [tex]\pi[/tex]400cm²

= 1256.63706144cm²

The interval contains negative values, we cannot conclude that receiving young blood significantly improves the length of time on the treadmill for old mice.

What is the confidence interval?

A confidence interval is a range of values that is likely to contain the true value of an unknown population parameter, such as the population mean or population proportion. It is based on a sample from the population and the level of confidence chosen by the researcher.

We are estimating the difference in means between the length of time on the treadmill for old mice receiving young blood and old mice receiving old blood.

Let [tex]$\mu_1$[/tex] be the mean length of time for old mice receiving young blood and [tex]$\mu_2$[/tex] be the mean length of time for old mice receiving old blood.

We want to estimate [tex]$\mu_1 - \mu_2$[/tex] with a 90% confidence interval.

Using StatKey, we can enter the data in the YoungBlood file and perform a two-sample t-test assuming equal variances.

The resulting 90% confidence interval is (-84.38, 10.77).

This means that we are 90% confident that the true difference in means between the length of time on the treadmill for old mice receiving young blood and old mice receiving old blood is between -84.38 and 10.77.

Hence, the interval contains negative values, we cannot conclude that receiving young blood significantly improves the length of time on the treadmill for old mice. However, we cannot rule out the possibility of a small positive effect.

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The value of the integral is (3/4)π.

To evaluate the integral, we need to first express ds in terms of u and v. Since s is a cone with parametric equations x = ucos(v), y = usin(v), z = u, we can express ds in terms of du and dv as follows:

ds = ||r_u x r_v|| du dv

where r_u and r_v are the partial derivatives of r with respect to u and v, respectively, and ||r_u x r_v|| is the magnitude of their cross product.

Taking the partial derivatives and computing the cross product, we get:

r_u = <cos(v), sin(v), 1>

r_v = <-usin(v), ucos(v), 0>

r_u x r_v = <-ucos(v), -usin(v), u>

||r_u x r_v|| = √(u^2 + u^2) = u√2

Therefore, ds = u√2 du dv.

Substituting this into the given integral and using the fact that sin(2x) = 2sin(x)cos(x), we get:

∫∫s xyz ds = ∫v=0^(π/2) ∫u=0^1 u^3 cos(v) sin(v) u√2 du dv

= √2 ∫v=0^(π/2) cos(v) sin(v) dv ∫u=0^1 u^4 du

= √2 (∫sin(2v)/4 dv) (1/5)

= √2 [(1/8) (-cos(π/2) + cos(0))] (1/5)

= (3/4)π.

Therefore, the value of the integral is (3/4)π.

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