Question

What is the geometric mean of 3 and 15?
Answer

22.5

45

3 radical 5

5 radical 3

Answer 1

Geometric Mean = \[\sqrt{ab}\]

So here a = 3 and b =15

Use the above formula and find the geometric mean..
Can you do it or not??

Answer 2

This formulae is correct .
But the answer by using this formulae is 6.7(approx).....

Answer 3

so far i was thinking of squaring them

Answer 4

which gives me 9 and 225

Answer 5

We find the factors of 45 and they are 3*3*5. We cancel out the 3's and put one outside the square root and have 3sqrt"5", your third answer.