Use the reference angle to find the exact value of the expression. Do not use a calculator.sec 
A. 
B. - 
C. -2
D. -
Answer: D
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Graph the parabola and show the focus and directrix.y2 = -36x
A. 
B. 
C. 
D. 
Find the maximum and minimum of the function f over the closed and bounded set S.f(x, y) = x + y + 88; S = {(x, y): x2 + y2 ? 1}
A. f(0, 0) = 88; maximum. No minimum.
B. f(
, 
) = (88 + 
); maximum. f(- 
, - 
) = (88 - 
); minimum.
C. f(0, 0) = 88; minimum. No maximum.
D. f(- 
, - 
) = (88 + 
); maximum. f(
, 
) = (88 - 
); minimum.
Solve the problem.Suppose you pay $1.00 to roll a fair die with the understanding that you will get back $3.00 for rolling a 6 or a 5, nothing otherwise. What is your expected net winnings?
A. -$1.00 B. $1.00 C. $0.00 D. $3.00
Compute the compound interest.$8000 is invested at 9% compounded quarterly. In how many years will the account have grown to $13,500? Round to the nearest tenth of a year.
A. 6.1 years B. 5.9 years C. 11.8 years D. 1.1 years