Find the integral by using integration by parts or other techniques. Round the answer to four decimal places if necessary.
A. (
- x) ln 2x - 
+ x + C
B. (x2 - x) ln 2x - x2 + x + C
C. (x2 - x) ln 2x - 
+ 2x + C
D. (x2 - x) ln 2x - 
+ x + C
Answer: D
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Solve the problem.Elissa earns $8.55 per hour working at the Salem Animal Shelter. The amount, A, she earns in t hours is given by the equation A = 8.55t. Determine Elissa's pay if she works 28 hours.
A. $237.04 B. $237.83 C. $239.64 D. $239.40
Solve the differential equation.
- 
= ( ln x)2
A. y = 
(ln x) 3 + cx
B. y = x (ln x) 3 + cx
C. y = 
x (ln x) 3 + cx
D. y = 
x3 + cx
Provide an appropriate response.A building supply store offers a 2% discount to contractors who pay their bill within ten days of the date of the invoice. How much will a contractor have to pay if he pays his invoice of $654.78 within the ten-day period?
Fill in the blank(s) with the appropriate word(s).
The primary reason a firm holds marketable securities is because they:
A. substitute for its long-term debt. B. offer a place to temporarily invest cash balances to earn high rates of return. C. are useful for managing credit sales. D. can be used to help speed up collections of its accounts payable. E. permit the firm to earn positive returns on cash that is not needed to pay bills in the current period.