Use integration by parts to find the integral.

A. x2e2x - xe2x + e2x + C
B. x2e2x - xe2x + e2x + C
C. x2e2x - xe2x + e2x + C
D. x2e2x - xe2x + C

Answer: C

Mathematics

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Use the given transformation to evaluate the integral.   where R is the trapezoid with vertices at    

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A.
B.
C.
D.

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Simplify by rationalizing the denominator. Write your answer in a + bi form.

A.  - i
B. 18 + 1i
C.  + i
D.  - i

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Evaluate the integral.

A.
B.
C. 0
D.

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Solve the problem.A woman has $2.55 in dimes and nickels. She has 18 more dimes than nickels. How many nickels does she have?

A. 7 B. 5 C. 28 D. 23

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