Compute the integral Z Z Z U y dV , where U is the part of the ball of radius 2, centered at (0, 0, 0), that lies in the 1st octant. Recall that the first octant is the part of the 3d space where all three coordinates x, y, z are nonnegative. (Hint: You may use cylindrical or spherical coordinates for this computation, but note that the computation with cylindrical coordinates will involve a trigonometric substitution - so spherical cooridnates should be preferable.)

Answers

Answer 1

As the hint suggests, convert to spherical coordinates using

x = p cos(u) sin(v)

y = p sin(u) sin(v)

z = p cos(v)

dV = dx dy dz = p² sin(v) dp du dv

Then U is the set

[tex]U = \left\{ (p,u,v) \mid 0\le p\le2 \text{ and } 0\le u\le \dfrac{\pi}2 \text{ and } 0\le v\le\dfrac{\pi}2\right\}[/tex]

and the integral of y over U is

[tex]\displaystyle \iiint_U y \, dV = \iiint_U p\sin(u)\sin(v) \cdot p^2 \sin(v) \, dV[/tex]

[tex]\displaystyle \iiint_U y \, dV = \int_0^{\frac\pi2} \int_0^{\frac\pi2} \int_0^2 p^3 \sin(u) \sin^2(v) \, dp \, du \, dv [/tex]

[tex] \displaystyle \iiint_U y \, dV = \frac{2^4-0^4}4 \int_0^{\frac\pi2} \int_0^{\frac\pi2} \sin(u) \sin^2(v) \, du \, dv [/tex]

[tex]\displaystyle \iiint_U y \, dV = 4 \cdot \left(-\cos\left(\frac\pi2\right) + \cos(0)\right) \int_0^{\frac\pi2} \sin^2(v) \, dv [/tex]

[tex]\displaystyle \iiint_U y \, dV = 4 \cdot \frac12 \int_0^{\frac\pi2} (1-\cos(2v)) \, dv [/tex]

[tex]\displaystyle \iiint_U y \, dV = 2 \left(\left(\frac\pi2 - \frac12 \sin\left(2\cdot\frac\pi2\right)\right) - \left(0 - \frac12 \sin\left(2\cdot0\right)\right) \right)[/tex]

[tex]\displaystyle \iiint_U y \, dV = \pi - \sin(\pi) = \boxed{\pi}[/tex]


Related Questions

Type the correct answer in each box. Use numerals instead of words. If necessary, use / for the fraction bar(s).

Answers

Answer:

f^-1(x) = [ln (x + 4)]/2

Step-by-step explanation:

f(x) = e^(2x) - 4

y = e^(2x) - 4

x = e^(2y) - 4

x + 4 = e^(2y)

ln (x + 4) = ln (e^(2y))

ln (x + 4) = 2y

y = [ln (x + 4)]/2

f^-1(x) = [ln (x + 4)]/2

Can anybody answer this for me?

Answers

[tex]\\\text{Given that,}\\\\(x_1 , y_1) = (5,6) ,~~ (x_2, y_2) = (-5,-4)\\\\\text{Slope},~m = \dfrac{y_2 - y_1}{x_2 - x_1} = \dfrac{-4-6}{-5-5} = \dfrac{-10}{-10} = 1[/tex]

y= -6x + 1/2


PLEASE I NEED THE ANSWER AND EXPLANATION

Answers

Answer:

m = -6 (slope)

b = (1/2)

The Y posistion is (0, 0.5) and the slope of the graph is -6/1 (down 6, right 1).

Some examples of where the line is could be:

(1, -5.5)

(-1, 6.5)

Find the volume of a cylinder either enter. An exact answer in terms of pie or 3.14 please help me

Answers

128 pi

To find the area of a cylinder, we multiply the area of the base times it’s height. For a cylinder the base is a circle so we use
pi r^2 to find it. In this problem the radius or r = 4 so the area of the base equals 16 pi. The height is 8. So we multiply these two to get the answer of 128 pi

How do I do i’m not sure

Answers

[tex](a)\\\\m=6.1\times 10^{-5},~~ t=1.7 \times 10^{-6} \\G = \sqrt{\dfrac{m}{t^2}} = \sqrt{\dfrac{6.1\times 10^{-5}}{\left(1.7 \times 10^{-6}\right)^2} } ~=4590\\\\\\(b)\\\\m=6.1\times 10^{-5}(1+ 8\%) = 6.1\times 10^{-5}(1+0.08) = 0.0000648\\\\t=1.7\times 10^{-6}(1+ 5\%)= 1.7\times 10^{-6}(1+0.05) =0.000001785\\\\\\G=\sqrt{\dfrac{m}{t^2}} = \sqrt{\dfrac{0.0000648}{(0.000001785)^2}}=4510[/tex]

What is the value of 1027


A. 100

B. 1,000

C. 10,000

D. 100,000

Answers

Answer:

huh? this doesn't even make sense or I'm just tripib

Step-by-step explanation:

-xoxo

the length of the house is 1,200 feet and 1,100 feet wide. what is the perimiter

Answers

Answer:

4,600

Step-by-step explanation:

1,200+1,200+1,100+1,100

Let’s say the house is a perfect rectangle. Then you would take all 4 sides and add them to find the perimeter. 1,200+1,100+1,200+1,100. Rectangles have 2 parallel sides, so the length and the width would be the same for both sides. The answer is 4,600 feet.

Precalc please help!!

Answers

Answer:

Step-by-step explanation:

x^3-3x^2+x-2/10x^4-14x^3-10x^2+6x-10

Answers

Answer:

The quotient is 10x+16

The remainder is 28x^2+10x+22

If the equation of the line is f(x) = 1/3x - 5 , what would be the new equation if there was a reflection over the y- axis, a dilation of -6, and a translation of 4 units up?

pls help I already solved but I'm not sure if I did a step out of order

Answers

Answer: Thus, after the transformation, the graph consists of points (x,y) satisfying y=2(x−3)2. This is the equation of the transformed graph.

Step-by-step explanation:

Consider the graph y=x2. Suppose the graph is dilated from the x-axis by a factor of 2, and then translated 3 units to the right. What is the equation of the resulting graph?

Solution

The transformation given is Trans(3,0)∘Dilx-axis,2. Denote by (x′,y′) the image of a point (x,y) under this transformation. A point (x,y) is sent to (x,2y) by the dilation, and then to (x+3,2y) by the translation, so (x′,y′)=(x+3,2y).

The original graph consists of points (x,y) such that y=x2. Then it is transformed so that (x,y)↦(x′,y′)=(x+3,2y). We must find what equation is satisfied by x′ and y′.

Since x′=x+3 and y′=2y, we have x=x′−3 and y=y′/2. Thus y=x2 implies

y′2=(x′−3)2or equivalentlyy′=2(x′−3)2.

If the principal is $3,200.00 and the rate of interest is 8%, what is the final account balance after 3 years

Answers

The answer is $2,432. I hope this is correct:) sorry if it isn’t

Answer:

i think it would round to 4031.08

Step-by-step explanation:

3200.00 * 1.08^3

=4032.0784

nesesito ayuda ..........4c`````````````````````````````````````````````````````z#DRsw

Answers

Answer: ???

Step-by-step explanation:

Question 5 of 10
Which of the following lists of ordered pairs is a function?
A. (1,6), (2, 7), (4,9), (0,5)
B. (2,4), (0, 2), (2, -4), (5,3)
C. (0,2), (2, 3), (0, -2), (4,1)
O D. (1,2), (1, -2), (3, 2), (3, 4)

Answers

Answer:

A

Step-by-step explanation:

Because the x doesn't repeating

Hope it can help you lovelots

#LEARN WITH BRAINLY

A water tank is 50cm by 30cm by 20cm. If 1 litre of water costs 300 taka, what is the total cost to fill up the tank with water?

Answers

50 x 30 x 20 = 30000 cm cubed
There are 1000 cm cubes in one litre
30000/1000 = 30 litres
So 300 x 30
9000 taka

Answer:

Step-by-step explanation:

The volume of the tank= (50x30X20) cm^3

                                       = 30000cm^3

                                       = 30 l

1 l costs 300 tk

therefore 30 l costs= 30X300 taka

                                = 90000 taka

Find Y if f(x)=g(x),please help me to answer this problem.

Answers

If f(x) = g(x)

Then :

(x-4)/(x²+1) = (x² - 4) / (x²+ 1)

We can simplify on both sides by x² + 1 :

x - 4 = x² - 4

x = x²

x - x² = 0

x(1-x) = 0

So either x = 0, or x = 1

S = {0,1}

Good Luck

Answer:

Step-by-step explanation:

( x , y )

( 0 , - 4 )

( 1 , - 1.5 )

[tex]y_{1}[/tex] = - 4

[tex]y_{2}[/tex] = - 1.5

please help me i really need it and NOOOO BOTS

Answers

D is the only answer is could be
The answer is clearly D

A small town has two local high schools. High School A currently has 250 students and is projected to grow by 50 students each year. High School B currently has 450 students and is projected to grow by 25 students each year. Let A represent the number of students in High School A in t years, and let B represent the number of students in High School B after t years. Graph each function and determine after how many years, t, the number of students in both high schools would be the same.

give me the corrdent plan point i need 2 for example
(5,2) and (4,1) like that on the graph
Answer: ________
students
students per year
years
years of student

Answers

Answer:

in 8 years both school will have 650 students

Step-by-step explanation:

HS A (t) = 250+50t

HSB (t) = 450+25t

250 + 50t = 450 + 25t

25t=200

t=8

in 8 years

to graph this:

HSA points (0,250) (2, 350) (4, 450) (8, 650)(10, 750)

HSB points (0, 450) ( 2, 500) (4, 550) (8, 650) (10, 700)

when you graph then you will notice they intercept at 8, which gives you 650 students

A 95% confidence interval for the true proportion of teenagers who have been to a professional sporting event is
(0.289, 0.416). Is it reasonable to believe that more than 25% of teenagers have been to a professional sporting
event?
O Yes, because 0.3525 is in the interval.
O Yes, because the entire interval is greater than 0.25.
O No, because there are values in the interval greater than 0.3525.
O No, because the center of the interval is 0.3525, which is not statistically greater than 0.25.

Answers

Using the given confidence interval, it is found that the correct option is:

Yes, because the entire interval is greater than 0.25.

The 95% confidence interval is (0.289, 0.416).

Since the lower bound of the interval, which is of 0.289, is greater than 0.25, the belief is reasonable.

Using the above justification, the correct option is:

Yes, because the entire interval is greater than 0.25.

A similar problem is given at https://brainly.com/question/17097944

Convert to an exponential equation.
In 17 = 2.8332

Answers

Answer:

17 = e^2.8332

Step-by-step explanation:

how long is the shadow the tree casts?

Answers

Anwser: 12 feet long

you’ll live 100 more years if you help me answer 1 through 5 :D!!!

Answers

Answer:

You need to give me a thanks and brainliest: 1. = 16 ; 2. = 100 ; 3. = 64; 4. = 604; 5. Cant see the problem in the screen shot.

Step-by-step explanation:

For questions 3 - 6, find F'(x), the inverse of F(x).

3. F(x) = x-10

4. F (x) = x/6 + 3

5. F(x) = 3x + 7

6. F(x) = 8x

Answers

Answer:

3)  f'(x) = x + 10

4)  f'(x) = 6x - 18

5)  [tex]\displaystyle\mathsf{f'(x)=\frac{1}{3}x-\frac{7}{3}}[/tex] or  [tex]\displaystyle\mathsf{f'(x)=\frac{x - 7}{3}}[/tex]

6)  f'(x) = ⅛x  or  [tex]\displaystyle\mathsf{f'(x)=\frac{x}{8}}[/tex]  

Step-by-step explanation:

3. f(x) = x - 10

Step 1: In order to find the inverse function of f(x) = x - 10, start by replacing f(x) with y.  

y = x - 10

Step 2:  Switch x and y:

x = y - 10

Step 3: Add 10 to both sides to isolate y:

x + 10 = y - 10 + 10

x + 10 = y

Step 4: Replace y with f'(x):

f'(x) = x + 10  ⇒ This is the inverse function of f(x).

4.  [tex]\displaystyle\mathsf{f(x)=\:\frac{x}{6}\:+\:3}[/tex]

Replace f(x) with y:

[tex]\displaystyle\mathsf{y=\:\frac{x}{6}\:+\:3}[/tex]

Switch x and y:

[tex]\displaystyle\mathsf{x=\:\frac{y}{6}\:+\:3}[/tex]

Subtract 3 from both sides:

[tex]\displaystyle\mathsf{x-3=\:\frac{y}{6}\:+\:3-3}[/tex][tex]\displaystyle\mathsf{x-3=\:\frac{y}{6}}[/tex]

Multiply both sides by 6 to isolate y:

[tex]\displaystyle\mathsf{6(x-3)=\:\frac{y}{6}(6)}[/tex]

6x - 18 = y

Replace y with f'(x):

f'(x) = 6x - 18  ⇒ This is the inverse function of f(x).

5. f(x) = 3x + 7

Replace f(x) with y:

y = 3x + 7

Switch x and y:

x = 3y + 7

Subtract 7 from both sides:

x - 7 = 3y + 7 - 7

x - 7 = 3y

Multiply both sides by :

⅓(x - 7) = 3y (⅓)

[tex]\displaystyle\mathsf{\frac{1}{3}x-\frac{7}{3}=y}[/tex]

Replace y with f'(x):

[tex]\displaystyle\mathsf{f'(x)=\frac{1}{3}x-\frac{7}{3}}[/tex]  or  [tex]\displaystyle\mathsf{f'(x)=\frac{x - 7}{3}}[/tex]   ⇒ This is the inverse function of f(x).

6. f(x) = 8x

Replace f(x) with y:

y = 8x

Switch x and y:

x = 8y

Multiply both sides by :

⅛(x) = ⅛(8y)

⅛x = y or  [tex]\displaystyle\mathsf{\frac{x}{8}=y}[/tex]  

Replace y with f'(x):

f'(x) = ⅛x  or [tex]\displaystyle\mathsf{f'(x)=\frac{x}{8}}[/tex]   ⇒ This is the inverse function of f(x).

Suppose the average price of the market basket for toddler toys was $737.75 in 1994 and $801.93 in 2000 for the same basket. Calculate the inflation rate over this period. (Round your answer to the nearest hundredth of a percent.)

Answers

Answer:

0.014

Step-by-step explanation:

Minused old price from New then divided the answer by the old price then divided that by 6 to get yearly inflation

Answer:

Knewton as of May 15, 2022 8.70%

Step-by-step explanation:

Evaluate - (3 ^ - 5) * (3 ^ 3)

Answers

Answer:

1 / 3^2 = 1/9

Step-by-step explanation:

3^-5 = 1/3^5

(1/3^5) * (3^3) = 3^3 / 1/3^5 = 3^3 / 3^5 = 1/3^2

The value of the given expression is 1/9 .

Given,

[tex](3^{-5}) (3^{3} )[/tex]

According to the power rule,

[tex](a^{m}) (a^{n} ) = a^{m + n}[/tex]

Now,

[tex](3^{-5}) (3^{2}) = 3^{-5 + 3}\\ \\ (3^{-5}) (3^{2}) = 3^{-2}[/tex]

[tex](3^{-5}) (3^{2}) = 1/3^{2}[/tex]

[tex](3^{-5}) (3^{2} ) = 1/9[/tex]

Thus with the power rule answer will be 1/9.

Learn more about power rule,

https://brainly.com/question/23418174

#SPJ6

Will give brainliest

Answers

Answer:

down - up +

Step-by-step explanation:

Addison plays 6 songs in of an hr. How many
songs can she play for 4 hours?

Answers

Answer:

24

Step-by-step explanation:

4x6=12or 2x6=12so then 12+12=24

Answer:

6 songs per hour, so multiply that with the number asked which is four

so four times six is24

so she can play 24 songs in four hours!

~ ...

~ !

~ !

When you have > or <, the solutions are only in the shaded area.
True
or
False

Answers

Answer: True

Step-by-step explanation: Because the solutions can not land on the dotted lines.

the answer would be true

ROUND OF THE UNDERLINED DIGIT IN EACH DICEMAL NUMBER

1. 25.5678
2.0.8974
3.12.9542​

Answers

Answer:

I think 25.5678

it's the correct answer

Step-by-step explanation:

gamsahamnida

Latonya swims 50 meters in 1/2 minute. What is the slope

Answers

Answer: 100

Step-by-step explanation: 50 x 1/2=100

what is pulmonary function ​

Answers

Answer:

pulmonary function is the blood or gas flow from or to the lungs

Step-by-step explanation:

the lungs take in oxygen and take out c02

The lungs' main role is to bring in air from the atmosphere and pass oxygen into the bloodstream. From there, it circulates to the rest of the body. Help is required from structures outside of the lungs in order to breathe properly.

Other Questions
How did land labor and capital increase during the gilded age FIND THE MISTAKE IN THIS SENTENCE: (..) I really wish I (would have) a car of my own so that I (could go) for a drive in the country and I (would be able) to go when I want to and not (have to) wait for a bus or a train. 5. What percent of 36 is 24?A. 50%B. 66.7%C. 75%D. 80% Can someone help me out The sum of two numbers is 15 and the difference is 4. Let the two numbers be x and y.Write down a pair of simultaneous equations involving x and y. Solve the equations. On Shirley Abbotts Womenfolks: Growing Up Down South (1998) With which of the following pairs does the speaker illustrate what she means by schizoid in line 21?Select one:a. plate-glass store fronts (line 22) and splendid white stucco bathhouses (line 23)b. stones in an old-fashioned necklace (lines 25) and fronted in mirrors and glittering chrome (lines 30)c. the multistoried Arlington (line 28) and The Southern Club (line 32)d. once was a gambling casino (line 31) and now a wax museum (line 31-32)e. Chicago (line 41) and Churchill Downs (line 47) How would you write 262 3 in addition form?600 + 18 + 6600 + 180 + 6618 + 6600 + 180 + 6 3 18.which the venn diagram illutrates A-B? what is use of hydraulic machine? At the sewing store, Brittany bought a bag of mixed buttons. The bag included 30 buttons, ofwhich 10% were large. How many large buttons did Brittany get? 15. (05.04 MC)Estimate and solve 4,298 56 = ________. (1 point)76 r 4276 r 878 r 4282 r 8 pls help asap! x/-4 - 4 = -13 How do you solve for x? I am really struggling on this someone please help When Twain puts words such as "labboard" in quotation marks, what is heshowing?A. SarcasmB. HyperboleC. DialectD. Understatement PLZ HELP ME with this hw What is p squared in math? A lava lamp is an example of which type of heat transfer?A. Solar EnergyB. RadiationC. ConductionD. Convection Work out the length x. 14cm, 7cm , right angle triangle Which is NOT a function?A. y = x + 3^2B. x + y = 3^2C. x + 3 = y^2D. y = x^2 - 3 _____ is an order that requires corrections officials to bring an inmate before a court and explain why he or she is being held in prison. In the modern world, you will find tricksters in almost all walks of life. Perform online or offline research and create a list of tricksters in the modern world. Briefly explain why you think that the characters youve picked are tricksters. Choose one of the tricksters from your list and describe him or her by applying the six traits of a trickster to his or her character.