Perform the indicated operation.(2 + 
)(2 - 
)
A. 2 - 2
B. -9
C. -11
D. 17
Answer: B
Mathematics
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Sketch D and g(D) from the description of D and change of variables 
x = u cos v, y = u sin v where D is the rectangle 1 ? u ? 2, 0 ? v ? 
?
A.
 ? |  |
B.
 ? |  |
C. None of these.
D.
 ? |  |
Mathematics
Solve the problem.After 5 years, the balance, A, in an account with principal P and interest rate r compounded annually is given by the formula 
Simplify this formula by factoring.
A. A = P(1 + r)5r B. A = (P + Pr)(1 + r)4 C. A = P(1 + Pr)(1 + r)4 D. A = P(1 + r)5
Mathematics
Evaluate the integral.
x dx
A. x cos-1x - 2
+ C
B. x cos-1x + 
+ C
C. x cos-1x - 
+ C
D. x cos-1x - 
+ C
Mathematics
Divide. Simplify if possible.
÷ 
A. 
B. 
C. 
D. 
Mathematics