If x2 y2 = 80 and x y = 8, then the average of x and y is

1.	If x² y² = 80 and x y = 8, then the average of x and y is
A.	2
B.	3
C.	4
D.	5
Answer» E.

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If x2 y2 = 80 and x y = 8, then the average of x and y is

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If x² y² = 80 and x y = 8, then the average of x and y is