Evaluate the integral.
A. 
x sin(ln x) + 
x cos (ln x) + C
B. 
x sin(ln x) - 
x cos (ln x) + C
C. x sin(ln x) - x cos (ln x) + C
D. x cos(ln x) - x sin (ln x) + C
Answer: B
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Rationalize the denominator and simplify. Assume that all variables represent positive real numbers.
A. 9
+ 45
B. 9
- 45
C. 9
- 5
D. 
Solve the problem.Tech Support Associates purchased a new computer network server and replaced all its terminals for $26,100. Its estimated life is 3 years, at which time it will have a scrap value of $2500. Use the straight-line method of depreciation to find the annual amount of depreciation. Find the book value at the end of 2 years.
A. $7867, $15,734 B. $7867, $10,366 C. $8700, $17,400 D. $8700, $8700
Identify the intersection of the plane with the solid.Cylinder
A. Circle or oval
B. Semicircle
Solve by the method of your choice.-8x2 + 5x = 1
A. 
B. 
C. 
D. 