Solve the problem.The number of mosquitoes M(x), in millions, in a certain area depends on the June rainfall x, in inches, according to the equation  What rainfall produces the maximum number of mosquitoes?

A. 10 in.
B. 0 in.
C. 20 in.
D. 400 in.

Answer: A

Mathematics

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Solve the problem.If  is a convergent series of nonnegative terms, what can be said about , where k is a positive integer?

A. Always diverges B. May converge or diverge C. Always converges

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Find the angles of the trignometric values in degrees. ? represents the unknown angle measure. sin ? = 0.5589

A. 33.98° B. 9.14° C. 9.1° D. 34.0°

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Add or subtract as indicated. If terms are not like radicals and cannot be combined, so state. Assume all variables represent nonnegative real numbers.16y2 + 8x2

A. 16x4y2 + 8x2y4
B. 8x2y2
C. 24x2y2
D. 16x2y2 + 8x2y2

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Solve the problem.Given is a graph of a portion of the postage function, which depicts the cost (in cents) of mailing a letter, p, versus the weight (in ounces) of the letter, x. Find each limit, if it exists:p(x), p(x), p(x)

A. 77; 77; 77 B. 77; 99; does not exist C. 77; 99; 77 D. 99; 77; does not exist

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Mathematics