Question

Twelve is the geometric mean of 9 and what number?

Answer 1

a geometric mean of 2 numbers is the sqrt of the product

Answer 2

\[12 = \sqrt{9n}\]

Answer 3

because the geometric mean can be given by \[\sqrt{b*a}\] for 2 numbers, b and a,
\[12 = \sqrt{9*x}\] solve for x

Answer 4

am i suppose to divide?

Answer 5

is the answer 4?

Answer 6

youre spose to work the algebra ... square then divide

Answer 7

and no, 12 is not equal to the sqrt(36)

Answer 8

24?

Answer 9

no ... are you guessing? we cant see where you are going astray

Answer 10

no imnot im not good at geometry at all

Answer 11

your in luck then, this isnt geometry

Answer 12

im sorry if im waisting ur time here let me try again and im in a geometry coarse haha :p but ok

Answer 13

its not a wasting time :)\[12=\sqrt{9n}\]
square both side\[12^2=[\sqrt{9n}]^2\]
\[144=9n\]
now divide the 9\[n=144/9\]

Answer 14

o my god i get it it knowwwwww thank u so much the answers 16

Answer 15

geometry-wise its the proportion of similar triangles:\[\frac{12}{9}=\frac{n}{12}\]

Answer 16

good luck :)

Answer 17

thank you :)