Use half-angle identities to find the exact value of the expression.sec 
A. 
B. 
C. 
D. 
Answer: D
Mathematics
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?Simplify the following rational expression.
?
?
A. ?
B. ?
C. ?
D. ?
E. ?
Mathematics
Divide.5.3 ÷ (-10)
A. -53 B. 530 C. -0.053 D. -0.53
Mathematics
Solve the problem. Round to the nearest tenth if necessary.Last year, Maria earned $392 per week. This year, her salary increased to 
per week. What is the percent of increase?
A.
| 94.5% |
B. 5.9%
C.
| 94.1% |
D.
| 5.5% |
Mathematics
Use a graphing utility to find or approximate solutions to the equation. If necessary, round your answers to three decimal places.x2 - 6x - 57 = 0
A. 31.605, -25.605 B. 25.605, -31.605 C. 11.124, -5.124 D. 5.124, -11.124
Mathematics