Evaluate the improper integral.

A. 12
B. 1
C.
D.


Answer: D

Mathematics

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Graph the function.y = -4 sin  

A.

B.

C.

D.

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Find the indicated term for the arithmetic sequence with first term, a1, and common difference, d.Find a8, when a1 = -8, d = -3.

A. 13 B. -29 C. -32 D. 16

Mathematics

Write the given number in scientific notation.0.000007823 Give the answer to three significant digits.

A. 7.82 × 10-7 B. 7.82 × 106 C. 7.82 × 10-5 D. 7.82 × 10-6

Mathematics

Solve the problem. Assume all variables represent nonnegative real numbers.For f(x) = x +  and g(x) = x - , find (f ? g)(x).

A. (f ? g)(x) = x2 + 5
B. (f ? g)(x) = x2 - 2x - 5
C. (f ? g)(x) = x2 - 5
D. (f ? g)(x) = x2 - 2x + 5

Mathematics