3 years ago

What is the ratio of 5/7

Mathematics

1 answer:

Gnom [1K]3 years ago

7 0

Answer:

5:7.

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Find the surface area of a sphere with a great circle that has an area of 49 π square miles.

Mademuasel [1]

The answer is <span>B. 196 π mi2
</span>
(1) Find radius r:
The area of the circle is:
A = r²π
A = 49π mi²

49π = r²π
49 = r²
r = √49 = 7 mi

(2) Find the surface area of the sphere.
The surface area of the sphere is:
A = 4πr²
r = 7 mi
A = 4π * 7²
A = 4π * 49
A = 196π mi²

3 0

3 years ago

What is the answer to the problem? 7 1/2 ÷ 3/4 I need this fast please help!! :)

irakobra [83]

The answer is 10 I believe.

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3 years ago

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