3 years ago

Can someone please help me with the question in the image. if correct i will mark as brainliest

Mathematics

1 answer:

expeople1 [14]3 years ago

7 0

I hope this helps you if you don’t understand something tell me to explain

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Answer:

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Step-by-step explanation:

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What fraction is equivalent to 3/9

Crazy boy [7]

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we know that

For a spherical planet of radius r, the volume V and the surface area SA is equal to

$V=\frac{4}{3} *\pi *r^{3} \\ \\ SA=4*\pi *r^{2}$

The
ratio of these two quantities may be written as

$SAV =\frac{(4*\pi*r^{2})}{(\frac{4}{3}*\pi*r^{3})} \\ \\ SAV =\frac{3}{r}$

we know

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$\frac{SAV Moon}{SAV Mars} =\frac{3}{rMoon} *\frac{rMars}{3} \\ \\ \frac{SAV Moon}{SAV Mars} =\frac{rMars}{rMoon} \\ \\ \frac{SAV Moon}{SAV Mars} =\frac{3,397}{1,738} \\ \\ \frac{SAV Moon}{SAV Mars} =1.9545$

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the answer is

$1.9$

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