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Romashka [77]
2 years ago
14

Volumeof Cone with a height of 9 cm and radius of 3 cm

Mathematics
1 answer:
Naily [24]2 years ago
5 0

Answer:

i think this is the answer not 100 percentage sure V≈84.82cm³

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Which table matches the graph below?
lana [24]

Answer:

I can tell you that it is not A. I can't tell what the other tables say because the image is cropped. If you could please fix the image, I will be able to help you.

7 0
3 years ago
Which of the following is a solution to the system of equations? y= 3x+24<br> y=10-0.5x
Sergeeva-Olga [200]

Answer:

x = -4

y = 12

I hope it helps you

7 0
2 years ago
Find the volume V of the solid obtained by rotating the region bounded by the given curves about the specified line. y2
HACTEHA [7]

This question is incomplete, the complete question is;

Find the volume V of the solid obtained by rotating the region bounded by the given curves about the specified line. y2 = 2x, x = 2y; about the y-axis

Answer:

V = π (512/15)

Step-by-step explanation:

Given that;

region of rotation

y² = 2x, x = 2y

Region is rotated about y-axis as shown in the image

for the point of intersection,

y²/2 = 2y

y² - 4y = 0

y(y-4) = 0

∴ y = 0, y = 4

so the region lies in 0 ≤ y ≤ 4

Now cross section area of washer is

A(y) = π(outer radius)² = π(inner radius)²

A(y) = π(2y)² - π(y²/2)²

A(y) = π(4y²) - π(y⁴/4)

A(y) = π(4y² - (y⁴/4))

now volume of the solid of revolution is

V = ⁴∫₀ A(y) dy

V = ⁴∫₀ π(4y² - (y⁴/4))dy

V =  π {4⁴∫₀ y² - 1/4⁴∫₀y⁴ dy }

V = π { 4/3 [y³]₀⁴ - 1/20 [y⁵]₀⁴ }

V = π { 4/3 [4]₀⁴ - 1/20 [4]₀⁴ }

V = π { 4/3 [64]₀⁴ - 1/20 [1024]₀⁴ }

V = π { 256/3 - 1024/20 }

V = π { (5120 - 3072) / 60 }

V = π (512/15)

8 0
3 years ago
Consider the expression (-15) + 8. Describe a situation that could be represented by the expression. Then, find the sum and expl
Charra [1.4K]

Answer:

it not

Step-by-step explanation:

4 0
3 years ago
HELP ME PLEASE 10 POINTS ON IT PLEASE HELP ME ​
Svetach [21]

Answer:

4, 12, 16 (respectively)

Step-by-step explanation:

if you need one just comment and ill add one

5 0
3 years ago
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