Use the information given about the angle ?, 0 ? ? ? 2?, to find the exact value of the indicated trigonometric function.cos ? = - 
, 
< ? < ?Find cos(2?).
A. 
B. - 
C. - 
D. 
Answer: C
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A. 29 songs B. 19 songs C. 22 songs D. 24 songs
Solve the problem.What monthly contribution should you make if your goal is to have $425,000 in your retirement savings account after 25 years? Assume the APR is 5.4% compounded monthly and that contributions are made at the end of each month, including the last month. Round your answer to the nearest cent.
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Using the graph of 
for reference, select the correct graph for 
.
?
??
A. ?
B. ?
C. ?
D. ?
E. ?
Solve.2x1/2 - 11 = 1
A. 144
B. 36
C. 6
D. 