Combine like terms.4x + 8x

A. 32x
B. 12x2
C. 24x
D. 12x

Answer: D

Mathematics

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Evaluate the integral.

A. x3 sin 3x + 1x2 cos 3x - 2x sin 3x - 2 cos 3x + C
B. x3 sin 3x + x2 cos 3x - x sin 3x -  cos 3x + C
C. x3 sin 3x - x2 cos 3x + x sin 3x +  cos 3x + C
D. x3 cos 3x + x2 sin 3x - x cos 3x -  sin 3x + C

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Mathematics

Find a number to replace the question mark so that the given fractions are equivalent. = 

A. 46 B. 23 C. 22 D. 69

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Mathematics

Find the sum of the geometric series.

A. -131,027 B. -131,064 C. -131,062 D. -131,084

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Mathematics

The graph of a function f is given. Use the graph to answer the question.What are the x-intercepts?

A. -15 B. -15, 17.5 C. -15, 17.5, 25 D. -25, -15, 17.5, 25

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Mathematics