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3 years ago

Find the volume of a sphere with a surface area of 3600pi in squared.

Mathematics

1 answer:

Anna71 [15]3 years ago

5 0

Answer:

36000pi

Step-by-step explanation:

V = 4/3*pi*r^3 so we need to know r

we know surface area, which is 4pi*r^2=3600pi. so we can solve for r

r=30

so v = 4/3*pi*30^3 = 36000pi

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Determine whether each scale factor produces an expansion or a contraction under a dilation of the original image

blondinia [14]

Answer:

see the explanation

Step-by-step explanation:

we know that

If the absolute value of the scale factor is less than 1, then the dilation produces a contraction of the original image

If the absolute value of the scale factor is greater than 1, then the dilation produces an expansion of the original image

<u><em>Verify each value</em></u>

1) -4

$\left|-4\right|=4$

$4> 1$

therefore

The dilation produces an expansion of the original image

2) 0.25

$\left|0.25\right|=0.25$

$0.25 < 1$

therefore

The dilation produces a contraction of the original image

3) -2/3

$\left|-2/3\right|=2/3$

$2/3 < 1$

therefore

The dilation produces a contraction of the original image

4) 2.3

$\left|2.3\right|=2.3$

$2.3 > 1$

therefore

The dilation produces an expansion of the original image

4 0

3 years ago

F(x)=-5x. g(x)=8x^2-5x-9. Find: (f*g) (x)

Troyanec [42]

F(x) = -5x
g(x) = 8x² - 5x - 9

(f×g)(x) = ?
= ((-5x)(8x²-5x-9))
= -40x³ + 25x² + 45x → The answer Opsi D

5 0

4 years ago

Record the product 94 x 12 =

Ahat [919]

Answer:

1128

Step-by-step explanation:

Math

3 0

2 years ago

I = prt

lukranit [14]

Step-by-step explanation:

S.I = PRT

=$7430×(5÷100)× 3

=$1114•50

5 0

3 years ago

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What is the median of the lower half of the data 5,8,10,1,7,6,15,8,6

Degger [83]

I’m think it is the median

5 0

3 years ago

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