Answer:
9.16515138991168 or 9.2/9.17
depends on the nearest decimal place the question asked you to answer in.
Step-by-step explanation:
to find the geometric mean of any two numbers,
you need to add both numbers
so 7*12 which is 84
then you would have to square the result
√84 = 9.16515138991168
or if rounded to one decimal place it would be 9.2.
Hope this helps:)