Question

Find the geometric mean of 5 and 320.

A.
35
B.
40
C.
45
D.
50

Answer 1

Geometric Mean of a and b is
\(\Large \sqrt {ab}\)

so what will be Geometric mean of 5 and 320 ?

Answer 2

ugh i m not really sure

Answer 3

it'll be just
\(\Large \sqrt{5\times 320} = ... ?\)

Answer 4

Heres the set up for geometric mean, which we will call x:

Answer 5

ohhh

Answer 6

715.54?

Answer 7

\[\frac{ 5 }{ x }=\frac{ x }{ 120 }\]cross multiply and solve for x, your geometric mean.

Answer 8

no, whats 320 * 5 = ... ?

Answer 9

1600

Answer 10

yes
and its square root ?

Answer 11

40

Answer 12

thanks mate

Answer 13

oops, I did 120...sorry! Set up is\[\frac{ 5 }{ x }=\frac{ x }{ 320 }\]

Answer 14

\(
\huge \checkmark \)

Answer 15

welcome ^_^