Use half-angle formulas to find the exact value for the following:
?
?
A. 
B. ?
C. ?
D. ?
E. ?
Answer: A
Mathematics
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Refer to the following normal curve, with mean ? and standard deviation ?.
The standard deviation ? =
A. 12 B. 24 C. 3 D. 6 E. none of these
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Represent the sets on a number line.{x|x > -4}
A. 
B. 
C. 
D. 
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Solve the problem.Suppose you purchase a car and you are going to finance $16,000 for 36 months at an APR of 5.1% compounded monthly. Find the monthly payments on the loan. Round your answer to the nearest cent.
A. $544.32 B. $368.47 C. $480.25 D. $449.57 E. $568.47
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Find the reference angle for the given angle.- 
A. 
B. 
C. 
D. 
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