Evaluate using a table of integration formulas.
A. x ln 7x - 7x + C
B. x ln 7x + x + C
C. 7x ln x - x + C
D. x ln 7x - x + C
Answer: D
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How long will it take $1,400 to double itself if it is invested at 8% interest compounded semiannually? Please round the answer to the nearest tenth.
A. 8.8 years B. 11.8 years C. 9.3 years D. 7.8 years E. 9.8 years
Perform the indicated operation. Simplify if possible.
+ 
A. 5x - 1
B. 
C. 
D. 
Provide an appropriate response.If the range of y = f(x) is (-?, ?), what is the range of y = 
?
A. (0, ?) B. (-?, 0] C. [0, ?) D. (-?, ?)
Solve the problem.A guitar manufacturer spent $93 million on the production of acoustic and electric guitars in 1999. If the amount the company spent producing acoustic guitars was $57 million more than it spent on producing electric guitars, how much in fact did the company spend producing electric guitars?
A. $18 million B. $93 million C. $46.5 million D. $75 million