Find the exact value by using a half-angle identity.cos 
A. 
B. 
C. - 
D. - 
Answer: A
Mathematics
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Solve the equation.x - 
= 3 - 
A. -2, 4 B. 2, 4 C. -4, 2 D. -4, -2
Mathematics
Graph the function by starting with the graph of the basic function and then using the techniques of shifting, compressing, stretching, and/or reflecting.f(x) = (-x)2 
A. 
B. 
C. 
D. 
Mathematics
Solve the problem.Tom Quig traveled 260 miles east of St. Louis. For most of the trip he averaged 60 mph, but for one period of time he was slowed to 20 mph due to a major accident. If the total time of travel was 7 hours, how many miles did he drive at the reduced speed?
A. 75 miles B. 90 miles C. 80 miles D. 100 miles
Mathematics
Match the function to its graph.y = -cot (x + ?)
A. 
B. 
C. 
D. 
Mathematics