Evaluate the integral by using a substitution prior to integration by parts.

A.   e [  - 7] + C
B.   e [  - 1] + C
C. (7x + 7) e + C
D.   e  + C


Answer: B

Mathematics

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Solve.At a local university, students pay tuition of $943 per credit hour. Estimate the tuition cost of 21 credit hours by first rounding each value to the nearest ten.

A. $19,803 B. $960 C. $18,800 D. $19,800

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Add or subtract. Write the answer in lowest terms. +  - 

A.
B.
C.
D.

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Indicate whether the function is one-to-one.C = {(8, -5), (5, -8), (-3, -2), (3, 2)}

A. No B. Yes

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Find a basis for the set of all solutions to the difference equation.yk+2 + 5yk+1 - 6yk = 0 for all k

A. (-1)k, 6k B. 1k, (-7)k C. 1k, (-1)k, (-6)k D. 1k, (-6)k

Mathematics