An expression is shown below.

Mathematics

2 answers:

SOVA2 [1]3 years ago

7 0

The answer is 10x -34

Natali [406]3 years ago

6 0

Answer:

Step-by-step explanation:

Okay, so if i remember, you do the hyphens first. then move the equations down, then i think you move some numbers on one side to the other, like this, -4+10=6+9 -4+10-6=24 this is not actually correct, it's just an example.

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

antoniya [11.8K]

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

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

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