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9 is the geometric mean between 4 and which other number? A. 20.25 B. 81 C. 9 D. None of the choices are correct.

9 is the geometric mean between 4 and which other number? A. 20.25 B. 81 C. 9 D. None of the choices are correct.
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1 vote
9 is the geometric mean between 4 and which other number?

A. 20.25

B. 81

C. 9

D. None of the choices are correct.

User Rotkiv
by
7.5k points

1 Answer

0 votes
answer is A. 20.25

cause 20.25 x 9 = 81
√81 = 9
so 9 is the geometric mean between 4 and 20.25
User Larry Schiefer
by
8.2k points
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