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frez [133]
3 years ago
6

PLEASE HELP I'VE WAISTED ABOUT 30 POINTS ON THIS AND ITS ALMOST LATE

Mathematics
1 answer:
Semmy [17]3 years ago
8 0

Gavin is correct.

Because, Blaise did mistake in the 2nd step and after that all the steps became incorrect.

Blaise did 7x - 16x + 2

While it should be 7x - 16x - 2

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Compare the surface area-to-volume ratios of the moon and mars. express your answer using two significant figures.
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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

rMoon=1,738Km\\ rMars=3,397 Km

\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

therefore

the answer is

1.9

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A certain triangle has two 45° angles. What type of triangle is<br> it?
wariber [46]

Answer:

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