Write a general formula to describe the variation.R varies directly with g and inversely with the square of h; R = 3 when g = 3 and h = 5.
A. R = 5
B. R = 25gh2
C. R = 5
D. R = 25
Answer: D
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A. f(x, y, z) = 
B. f(x, y, z) = - 
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A. 1440° B. 1620° C. 1800° D. 2160°
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?
?
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