Evaluate the improper integral or state that it is divergent.

A. 20
B. -20
C. 0
D. Divergent


Answer: D

Mathematics

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Find the value of d2y/dx2 at the point defined by the given value of t.x = sin t, y = 9 sin t, t = 

A. 18 B. -9 C. 0 D. -18

Mathematics

Solve.Ted walks around a lake on a path that is 5 miles long. It takes him 3 hours to complete his walk. What is his average speed (in miles per hour)?

A. 1 miles per hour
B. 1 miles per hour
C. 1 miles per hour
D. 2 miles per hour

Mathematics

Graph the solution set of the system.x + 2y ? 2 x + y ? 0

A.

B.

C.

D.

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Tell whether the expression is a polynomial. If it is, give its degree. + 1

A. Polynomial, degree 0 B. Polynomial, degree 9 C. Polynomial, degree -1 D. Not a Polynomial

Mathematics