Integrate the function. dx

A.  ln   -    + C
B. x + ln   +    + C
C. ln   +    + C
D.  ln   - sin-1   + C


Answer: A

Mathematics

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A. y = 80x + 50 y = 60x + 55 B. 50y = x + 80  55y = x + 60 C. 50y = 80x   55y = 60x D. y = 50x + 80 y = 55x + 60

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Solve the problem.Find the value of a retirement savings account paying an APR of 5.4% (compounded monthly) after 45 years of monthly contributions (contributions made at the end of each month, including the last month) when the monthly contribution is $140. Round your answer to the nearest cent.

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Use partial fractions to find the sum of the series.

A. ?
B.
C. - 
D. -?

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Examine the discriminant of each equation and determine the nature of the roots.x2 + 3x - 7 = 0

A. One real solution B. Two real solutions C. No real solutions

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