1answer.
Ask question
Login Signup
Ask question
All categories
  • English
  • Mathematics
  • Social Studies
  • Business
  • History
  • Health
  • Geography
  • Biology
  • Physics
  • Chemistry
  • Computers and Technology
  • Arts
  • World Languages
  • Spanish
  • French
  • German
  • Advanced Placement (AP)
  • SAT
  • Medicine
  • Law
  • Engineering
DaniilM [7]
2 years ago
12

Please I need this asap, my answer is wrong

Mathematics
1 answer:
zavuch27 [327]2 years ago
7 0

Answer: 512\pi

Step-by-step explanation:

Given

Equation of curve is x=\sqrt{8+y}

When this curve is rotated about the y-axis, then volume generated is given by

V=\int_{a}^{b}\pi x^2dy

When x=0, y=-8

Put the limits and solve the integral

\Rightarrow V=\int_{-8}^{24}\pi (8+y)dy\\\\\Rightarrow V=\pi\left (  8y+\dfrac{y^2}{2}\right )_{-8}^{24}\\\\\Rightarrow V=\pi \left (  8\times 32+\dfrac{24^2-8^2}{2}\right )\\\\\Rightarrow V=512\pi

You might be interested in
The original price of a bicycle is $130. The sale price is 60% of the original price. What is the sale price of the bicycle?
djverab [1.8K]

Answer:

$78

Step-by-step explanation:

To find a portion of anything, you just multiply your first item by the equivalent decimal of your percent. Let's put it into action in this problem:

If your original price of your bike is $130, and you are trying to find the sale price, which is 60% (aka 0.6) of your original price. Now, like I previously mentioned, to find the portion of your price, you just want to multiply your OG price (130) by the decimal equivalent of your sale, (0.6). So 130*0.6=78

3 0
3 years ago
Find AuB and AnB for the sets A and B.<br> A={3, 4, 5, 6, 7), B = {4, 6, 8, 10)
kvv77 [185]

Answer:

AuB= {3,4,5,6,7,8,10}

AnB= {4,6}

7 0
2 years ago
Please help me with this geometry problem. :)
Reika [66]

Answer:

See below

Step-by-step explanation:

3 are congruent, 4 are supplementary

No matter which angle you pick you will get the same answer.

6 0
2 years ago
Which table shows a proportional relationship between x and y? x 2 3 5 6 y 3 4 7 9 x 4 6 8 10 y 6 8 10 12 x 1 5 8 10 y 15 75 120
AysviL [449]

Answer:

Only the 3rd table shows a proportional relation between x and y.

Step-by-step explanation:

The first table is  

x 2 3 5 6  

y 3 4 7 9

Here y is not increasing in uniform rate with x. So, the relation is not proportional.

The second table is  

x 4 6 8 10  

y 6 8 10 12

Here y is increasing in uniform rate with x, but at x = 0, y ≠ 0, Hence, the relationship is not proportional.

The third table is  

x 1 5 8 10  

y 15 75 120 150

Here, y is increasing in uniform rate with x, and  at x = 0, y = 0, Hence, the relationship is proportional.

The fourth table shows

x 3 9 10 15  

y 1 3 4 5

Here also y is not increasing in uniform rate with x. So, the relation is not proportional.

Therefore, only the 3rd table shows a proportional relation between x and y. (Answer)

5 0
3 years ago
At the recommendation of his veterinarian, Xavier decides to place his cat on a diet. His cat's original weight was 19.4 pounds.
aniked [119]

Answer:

w=1.14m-19.4

Step-by-step explanation:

m = months, the cat loses 1.14lbs per month. plus the cat started with 19.4 pounds. each month 1.14 is being subtracted from 19.4

7 0
3 years ago
Other questions:
  • Tori has lacrosse every 6 days and math every 7 days. She has both today. How many more days before she has both again?
    14·1 answer
  • Over four evenings, Ms. Cross grades 6 papers, 8 papers, 9 papers, and 7 papers. She wants to grade an average of 9 papers a nig
    9·1 answer
  • Q 11 anybody help me please
    12·2 answers
  • you have an initial amount of 55$ in a savings account and you deposit an equal amount into your account each week. After 6 week
    8·1 answer
  • 6xy2(3y-x)-3x2(x-3y)2
    7·1 answer
  • PLEASE SOMEONE HELP ME ILL MARK BRAINLESS AND PLEASE EXPLAIN AHHHH HELP
    6·1 answer
  • Diameter = 18 cm
    13·2 answers
  • Need help ASAP please and thanks
    10·1 answer
  • I need help please .
    14·1 answer
  • Correct will get brainliest.
    15·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!