Evaluate using integration by parts.
dx
A. 5x(2x + 3)1/2 - (2x + 3)3/2 + C
B. 5x(2x + 3)1/2 + 
(2x + 3)3/2 + C
C. 5x(2x + 3)1/2 - 
(2x + 3)3/2 + C
D. x(2x + 3)1/2 - 
(2x + 3)3/2 + C
Answer: C
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Solve the problem.The number of periods needed to double an investment when a lump sum is invested at 10%, compounded semiannually, is given by n = log1.05 2. Find the number of years before the investment doubles in value, to the nearest tenth of a year.
A. 3.6 years B. 7.1 years C. 14.2 years D. 28.4 years
For the function find the maximum number of real zeros that the function can have, the maximum number of x-intercepts that the function can have, and the maximum number of turning points that the graph of the function can have. g(x) = 
x7 + 6x2 - 2
A. 7; 7; 6 B. 7; 6; 5 C. 7; 7; 7 D. 6; 6; 7
Solve the problem.Suppose that y is directly proportional to x and that y = 40 when x = 8. Find the constant of proportionality k. Then use y = kx to find y when x = 17.
A. k = 320; y = 
B. k = - 5; y = - 85
C. k = 5; y = 85
D. k = 7; y = 119
Write an equation in standard form using only integers for the line described.The line through (2, 4), parallel to y = - 
x + 1
A. 3x + 4y = 22 B. 3x + 4y = -22 C. 4x + 3y = -22 D. 3x - 4y = 22