A function y = 5x2 +10 x is defined over an open interval x = (1, 2) . At least

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A function y = 5x2 +10 x is defined over an open interval x = (1, 2) . At least at one point in this interval, dy/dx is exactly

Options:

A . 20

B . 25

C . 30

D . 35

Answer: Option B

-NA-

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