What is the geometric mean of 7 and 12? a.1b.9.5c.2√21d.4√21

Nolan H asked May 16, 2023

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Nolan H asked May 16, 2023

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29 votes

To find the geometric mean,

Simply follow the steps below:

$\frac{x}{7\text{ }}=(12)/(x)$
x^2=84

Take the square root of both-side

$x=\sqrt[]{84}$
$=\sqrt[]{4\text{ x 21}}$

$=2\sqrt[]{21}$

Therefore, the correct option is C.2√21

Eyes answered May 20, 2023

by Eyes

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