Find the limit as x approaches c of the average rate of change of the function from c to x.c = 7; f(x) = 2x2 + 4

A. 32
B. 98
C. Does not exist
D. 28


Answer: D

Mathematics

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Solve the problem.The function A described by A(s) = s2   gives the area of an equilateral triangle with side s. Find the area when a side measures 14 cm. Express your answer in radical form.

A. 7 cm2
B. 49 cm2
C. 3.5 cm2
D. 147 cm2

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Find the domain of the function.g(x) = 

A. (-?, 0) B. (-?, -7) ? (-7, ?) C. (0, ?) D. (-?, 7) ? (7, ?)

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Multiply and express the product in lowest terms. ? 

A.
B.
C.
D.

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