Question

how do i find the geometric mean between 4 and 25

Answer 1

if b is the geometric mean between a nd c, then
\(\large b=\sqrt{ac}\)
here, a=4,c=25

Answer 2

multiply (in your head) then take the square root (again in your head)

Answer 3

can you show me how i would set it up as 2 fractions?

Answer 4

as a fraction ? yes,
if b is the geometric mean between a and c, then
\(\huge \dfrac{a}{b}=\dfrac{b}{c}\)

Answer 5

a and c is 4 and 25?

Answer 6

absolutely :)

Answer 7

so i would set it up as 4/b=b/25 ?

Answer 8

correct, go on

Answer 9

and the sqrt of 4*25 is 10?

Answer 10

yes, it is. GM =10 is correct :)
any doubts ?

Answer 11

nope :)
but what if instead the 25 was 1/4 as a fraction?

Answer 12

but what if ..... what ? i couldn't get you....

Answer 13

http://openstudy.com/updates/51e54635e4b04edf24846b9e

Answer 14

this a new question lol

Answer 15

ohh...i'll go there.. :)