What's the geometric mean of 12 and 5

The geometric mean is √ (60) or about 7.75

Step-by-step explanation:

To find the geometric mean, you have to use the following equation.

GM = √ (a*b)

Now we input the two numbers for a and b

GM = √ (a*b)

GM = √ (12*5)

GM = √ (60) or about 7.75