Suppose that Nora invested $800 at 9.25% compounded annually for 8 years and Patti invested $800 at 9% compounded quarterly for 8 years. At the end of 8 years, who will have the most money and by how much (to the nearest dollar)?
A. Nora by $7
B. Patti by $9
C. Nora by $9
D. Patti by $7
E. They will have equal amounts of money.
Answer: D
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You are laying phone cable between two cities and must cross a lake. You will lay L miles on land. The cost C, in dollars, depends on how much cable is on land and how much is in water. The relationship is
.
?
How much cable do you lay on land to achieve a minimum cost, and what is that minimum cost? Round your answers to two decimal places.
?
A. The minimum cost of $7.25 is achieved if you lay 2543.73 miles of cable on land. B. The minimum cost of $2543.73 is achieved if you lay 7.25 miles of cable on land. C. The minimum cost of $5.32 is achieved if you lay 2541.63 miles of cable on land. D. The minimum cost of $2541.63 is achieved if you lay 5.32 miles of cable on land.
Solve the problem.Find the area bounded by y(16 + 4x2) = 2, x = 0, y = 0, and x = 5.
A. 
tan-1
B. 
tan-1
C. sin-1
D. 2 sin-1
Divide.
A. 52 B. 0 C. undefined D. 1
Divide, if possible.
A. - 
B. -7
C. 7
D. -17