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The geometric mean of 4 and a is 2 √ 2.

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What is a?

asked Mar 8, 2013 in BASIC MATH by skylar Apprentice

1 Answer

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Geometric mean of n numbers G = (n1 * n2 ..... n)^1/n

2 √ 2 = ( 4 * a) ^1/2
(2 √ 2 )^2 = 4a
8 = 4a
divide each side by 4
a = 2

answered Mar 9, 2013 by Naren Answers Apprentice

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