Chapter 9, Problem 5STP

To determine

To find: The correct option for the geometric mean of $8$ and $18$ .

Answer to Problem 5STP

The correct option for the geometric mean of $8$ and $18$ is $\text{D}$ .

Explanation of Solution

Given information:

The given numbers are $8$ and $18$ .

The geometric mean of $8$ and $18$ is calculated as,

  $\begin{array}{c}G=\sqrt{8\times 18}\\ =\sqrt{144}\\ =12\end{array}$

Thus, the correct option for the geometric mean of $8$ and $18$ is $\text{D}$ .