3 years ago

What is the root of the function f(x)=3x^2-21x?

Mathematics

1 answer:

GrogVix [38]3 years ago

8 0

Answer: The root of this function would be (7,0)

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3 years ago

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

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

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

therefore

the answer is

$1.9$

5 0

3 years ago

Read 2 more answers

If f(x)=x/2-3and g(x)=4x^2+x-4, find (f+g)(x)

Sergeeva-Olga [200]

Step-by-step explanation:

(f+g)(x) = f(x) + g(x)

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3 years ago

Candidate carson received 2310 votes 55% of the total how many total votes were cast

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4 years ago