Question

The geometric mean of 4 and 9 is _____.
A.) 36
B.) 6
C.) 18
D.) 6.5

Answer 1

Hey there,

The geometric mean of 4 and 9 is
`\boxed{6}`

Reason: The square root of the product of the both numbers.

The geometric mean of 4 and 9 is 6. 4 * 9. = 6

~Jurgen

Answer 2

The correct option is: B) 6

Explanation:

The geometric mean of two numbers
`a` and
`b` is:
`√(ab)`

So, the geometric mean of 4 and 9 is:
`√(4* 9) = √(36) =6`