Question

Find two geometric means between 7 and 875.

Answer 1

you have to write it like this

7/x = 875/x

wherein X is the geometric mean
To find X use cross multiplication. It's just simple algebra

Answer 2

oh sorry the right equation will be

7/x= x/875

Answer 3

those are the geometric means?

Answer 4

The value you will get for X is the geometric means

Answer 5

http://www.cliffsnotes.com/study_guide/Geometric-Mean.topicArticleId-18851,articleId-18817.html here's my source

Answer 6

im still not getting it

Answer 7

essentially youre creating a geometric sequence

Answer 8

a1 = 7 and a4 = 875

find a2 and a3

Answer 9

an = a1 r^(n-1)

a4 = 7 r^3 = 875

r = (875/7)^(1/3)

a2 = 7 * (875/7)^(1/3)

a3 = 7 * (875/7)^(2/3)

if i see it right

Answer 10

otherwise you can try to solve:\[\frac{7}{a_2}=\frac{a_2}{a_3}=\frac{a_3}{875}\]