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The answer is approximately 12.65. To find the answer of this problem you set 20/x as equal to x/8 (also works vice versa) and then you cross multiply getting 160=x^2. Afterwards you use the order of operations and find that the square root of 160 is equal to x. The square root of 160 is approximately equal to 12.65 which is how you get to your final answer.
Wiki User
∙ 12y ago
Wiki User
∙ 12y ago4 (square) 10
* * * * *
Nearly there.
The product of the two numbers is 42 * 10
So the geometric mean is sqrt(product) = 4*sqrt(10) = 12.65 (approx)
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