Add using a vertical format.(5k2 - 8k - 2) + (8k2 - 8k - 2)

A. 13k2 - 8k - 4
B. 13k2 - 16k - 4
C. 13k4 - 16k2 - 4
D. 40k2 - 8k - 4

Answer: B

Mathematics

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Evaluate the integral.dx

A. 2 sin 4x -  cos3 4x + C
B. 2 sin 4x +  sin3 4x + C
C. 2 sin 4x -  sin3 4x + C
D. 8 sin 4x -  sin3 4x + C

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5y(2x - 12xy) =

a. -10xy - 60x2y b. 10xy - 60xy2 c. -10xy + 60xy2 d. 10y - 60xy2 e. 10xy + 60xy2

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Approximate the surface area of the figure using 3.14 for ?. If necessary, round to the nearest tenth.

A. 1796.1 m2 B. 708.1 m2 C. 1226.2 m2 D. 354 m2

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Mathematics

Solve the inequality. Graph the solution set and write the solution set in interval notation.  ? 0

A. (-?, -3] ? (-2, -1) ? [1, ?)

B. (-?, 1) ? (3, ?)

C. (-?, -3) ? (-1, ?)

D. (-?, 1] ? [3, ?)

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Mathematics