Evaluate the integral.
dx
A. ln 
+ C
B. -2 ln 
+ C
C. -2 ln 
+ C
D. -ln 
+ C
Answer: A
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Write an expression for the general or nth term, an, for the geometric sequence.-2, 6, -18, 54, . . .
A. an = -2 ? (-3)n-1 B. an = 2 ? (-3)n C. an = -2 ? 3n D. an = 2 ? (-3)n-1
Solve the system of equations by the addition method. If the system does not have a single ordered pair as a solution, state whether the system is inconsistent or dependent.8x - 6y = -6-3x - 2y = -2
A. (0, 2) B. (-1, 2) C. No solution, inconsistent D. (0, 1)
Find the average value of 
over the given region.
over the rectangular solid in the first octant bounded by the coordinate planes and the planes 
, 
, 
A. 
B. 
C. 
D. 
Simplify the radical. Assume that all variables represent nonnegative real numbers. 
A. 4y2
B. 2y2
C. 2
D. 2y4