Find an expression for the nth term of the arithmetic sequence., , , , , . . .

A. an = 
B. an = 
C. an = 
D. an = 

Answer: D

Mathematics

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Solve the problem.Find the foci and asymptotes of the following hyperbola: -  = 1

A. Foci: (0, -9), (0, 9); Asymptotes: y = x, y = - x
B. Foci: (-9, 0), (9, 0); Asymptotes: y = x, y = - x
C. Foci: (0, -15), (0, 15); Asymptotes: y = x, y = - x
D. Foci: (-15, 0), (15, 0); Asymptotes: y = x, y = - x

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Mathematics

Find the area of the shaded region.

A. 2 B. 2 + 2? C. ? D. 2?

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Mathematics

Solve for x: e-x = 40

a. 1.357 b. 1.000 c. -1.602 d. -2.718 e. -3.689

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Mathematics

Evaluate the expression.

A. 5 B. 0! C. 1 D. 10

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Mathematics