Find the average rate of change for the function between the given values.f(x) = x2 + 5x; from 5 to 7

A. 17
B. 12
C. 42
D.

Answer: A

Mathematics

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Solve the problem.A gear with a radius of 4 centimeters is turning at  radians/sec. What is the linear speed at a point on the outer edge of the gear?

A.  cm/sec
B. 20? cm/sec
C.  cm/sec
D.  cm/sec

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Mathematics

Find the requested value.If f(x) = 8x + 3 and g(x) = 6x2 - 7x + 2, find (fg)(2).

A. 99 B. 228 C. 532 D. 222

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Mathematics

Find the indicated derivative of the function.f'''(x) of f(x) = 

A. 6(x + 1)-4 B. 6(x + 1)-3 C. -6(x + 1)-4 D. -6(x + 1)-3

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Mathematics

Solve.A high school graduating class is made up of 325 students. There are 63 more girls than boys. How many boys are in the class?

A. 131 boys B. 63 boys C. 194 boys D. 325 boys

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Mathematics