Question

What is the geometric mean of 5 and 15?



75



37.5

Answer 1

75



37.5

Answer 2

geometric mean of a and b is \(\sqrt{ab}.\)

Answer 3

put a=5, b= 15

Answer 4

so 5 X 15 then square root it?

Answer 5

yes.

Answer 6

so square root of 60?

Answer 7

15*5 = 75

Answer 8

so , geometric mean = \(\sqrt {75}\)

Answer 9

lol my bad
but how do you simplify that

Answer 10

isn't \(\sqrt {75}\) in options ?

Answer 11

brooke, thats arithmetic mean.

Answer 12

anyways, \(\sqrt{75}=\sqrt{3*25}=\sqrt{25}\sqrt{3}=5\sqrt{3}\)

Answer 13

ya
the options are
5 square root 3
75
3 square root 5
37.5

Answer 14

ok so first one thank you

Answer 15

u got how ?

Answer 16

ya thank you i just needed help on first part but you showed me how thank you very much

Answer 17

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