64.99 rounded to the nearest tenth
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The above answer is absolute rubbish.
The geometric mean is sqrt(125*5) = sqrt(625) = 25
As it happens, the arithmetic mean is (125 + 5)/2 = 130/2 which is exactly 65. That is nearly the same as the answer given although I cannot understand why it required rounding. Furthermore, 64.99 is a number rounded to the nearest hundredth, not the nearest tenth!
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The geometric mean of 4 and 5 is 4.472135955
Geometric mean of 5 and 15= √(5x15)=√75=5√3
Geometric mean = sqrt(5*80) = sqrt(400) = 20
it is 10
Two numbers can have only one geometric mean. The geometric mean of 5 and 135 is +sqrt(5*135) = +sqrt(675) = 15*sqrt(3) = 25.98