Find the exact value of the expression.cos-1
A. 
B. 
C. 
D. 
Answer: D
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Solve the problem.Two cars start from the same point and travel in the same direction. If one car is traveling 59 miles per hour and the other car is traveling at 52 miles per hour, how far apart will they be after 2.1 hours?
A. 123.9 mi B. 109.2 mi C. 233.1 mi D. 14.7 mi
Solve the problem.Suppose the cost per ton, y, to build an oil platform of x thousand tons is approximated by y = 
. What is the cost per ton for x = 50?
A. $4250.00 B. $10.00 C. $3825.00 D. $447.37
Use division to express the fraction in the form quotient + 
.
A. 3x + 
B. 3x + 4 + 
C. x + 4 + 
D. x + 
A state lottery commission pays the winner of the "Million Dollar" lottery 10 installments of $100,000/year. The commission makes the first payment of $100,000 immediately and the other payments at the end of each of the next 9 yr. Determine how much money the commission should have in the bank initially to guarantee the payments, assuming that the balance on deposit with the bank earns interest at the rate of 15%/year compounded yearly. Please round the answer to the nearest cent.
(Hint: Find the present value of an annuity.) $__________