Can u help me in this one please guys

Given:

The number 12 is the geometric mean between 3 and a number x.

We need to determine the value of x.

Value of x:

Since, we know that the geometric mean is the square root of the product of two numbers.

Hence, we have;

where a and b are two positive numbers.

Substituting Geometric mean = 12, a = 3 and b = x, we get;

Squaring on both sides, we get;

Dividing both sides of the equation by 3, we have;

Thus, the value of x is 48.

how is that middle school

step-by-step explanation:

step-by-step explanation:

answers available in this download

(pearson%2c%25202012)%2520bbs.pdf& usg=aovvaw1obmtxnfghfgxhx0urh_je