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mean = (4 + 81)/2 = 85/2 = 42.5

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12y ago
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7y ago

√81 x √4 = 9 x 2 = 18

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Q: What is the geometric mean of 4 and 81?
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Related questions

What is the geometric mean of 9 and 81?

The geometric mean of 9 and 81 is 27.0


What is the geometric mean between 16 and 81?

√16 x √81 = 4 x 9 = 36


What is the geometric mean of 4 and 1 ninth?

Their geometric mean is:sqrt(42*(1/9)2)=sqrt(16*(1/81))=sqrt(16/81)=4/9-------------------The geometric mean of a set of n terms is equal to the nth root of the product of those n terms. The geometric mean of 4 and 1/9 is sqrt(4*(1/9)) = sqrt(4/9) = 2/3.


What is the geometric mean of 49 and 81?

geo. mean=√(49x81)=7x9=63


What is the geometric mean of 4 and 5?

The geometric mean of 4 and 5 is 4.472135955


What is the geometric mean of 81 and 16?

Just use the definition of geometric mean. Multiply the two numbers, then take the square root of the result. (To take the geometric mean of three numbers, multiply all of them, then take the cubic root, etc.)


Is 18 the geometric mean of 4 and 9?

No. Geometric mean of n numbers is the nth root of the product of the n numbers. → geometric mean of 4 and 9 is √(4×9) = √36 = 6.


Geometric mean of 4 and 4?

4.0


How do you find the geometric sequence?

a = -4 r = -3


What is the geometric mean of 8 and 16?

Geometric mean of 8 and 16 is: 11.313708498984761 Look at link: "Calculation of the geometric mean of two numbers".


What is the geometric means of 4 and 25?

geometric mean of 4 and 25=√(4x25)=√100=10


What is the Formula of geometric mean for 2 numbers?

The geometric mean of two numbers is the square root of their product. For example, the geometric mean of 4 and 25 is 10.