Use the cofunction identities to evaluate the expression without using a calculator.
?
cos265° + cos225°
?
A. 3
B. 4
C. -3
D. -1
E. 1
Answer: E
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The host of a TV infomercial says that the suggested retail price of a rotisserie grill is $68.00 and that it is now offered "for just 4 easy payments of only $10.20." What is the discount rate?__________ %
Fill in the blank(s) with the appropriate word(s).
Solve the indicated system of equations algebraically.A certain amount of money saved for 1 year at a certain annual interest rate (simple interest) yielded $23.04 in interest. If we had added $64 to the principle and reduced the interest rate by 3 percentage point(s), the interest would have been the same. Find the principle and the rate.
A. $15.00, 12% B. $6.45, 17% C. $15.00, 9% D. $192.00, 12%
Solve.
= 
- 1
A. - 3, 4 B. - 1 C. - 1, 3 D. ?
Construct a pie graph, with sectors given in percent, to represent the data in the given table.
A. 
B. 
C. 
D. 