Use the Half-angle Formulas to find the exact value of the trigonometric function. sin 
A. 
B. 
C. 
D. 
Answer: D
Mathematics
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Solve the system of equations by graphing.
A. (-1, -3) B. no solution C. (3, -1) D. (-1, 3)
Mathematics
Solve the problem.Chuck and Dana agree to meet in Chicago for the weekend. Chuck travels 285 miles in the same time that Dana travels 270 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. 57 mph B. 54 mph C. 55 mph D. 59 mph
Mathematics
Determine algebraically whether the function is even, odd, or neither even nor odd.f(x) = x + 
A. Even B. Odd C. Neither
Mathematics
Find the sum.18 + (-21) + (-14)
A. 25 B. -17 C. 53 D. 11
Mathematics