Use a graph in a [-2?, 2?, 
] by [-3, 3, 1] viewing rectangle to complete the identity.
= ?
A. 2 cos x - 1
B. sin x + 1
C. sin x
D. cos x
Answer: C
Mathematics
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Provide an appropriate response.What happens if C = 90° when the law of cosines is applied in the form 
What will be an ideal response?
Mathematics
Simplify.
+ 
A. 
x + 
B. 
x - 
C. 
x - 
D. 
x - 
Mathematics
Graph the parabola with the given equation.(x - 1)2 = 7(y - 2) 
A. 
B. 
C. 
D. 
Mathematics
Solve the problem.Chuck and Dana agree to meet in Chicago for the weekend. Chuck travels 208 miles in the same time that Dana travels 196 miles. If Chuck's rate of travel is 3 mph more than Dana's, and they travel the same length of time, at what speed does Chuck travel?
A. 45 mph B. 52 mph C. 49 mph D. 59 mph
Mathematics