Evaluate the integral.
A. 
B. 2?2
C. ?2
D. 
Answer: D
Mathematics
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Use the even-odd identities to find the exact value of the expression. sin (-120°)
A. 
B. 
C. - 
D. 
Mathematics
Express the exercise as a system of linear equations, then find the solution. Use a calculator where appropriate.Two angles are supplementary if the sum of their measures is 180°. The measure of the first angle is 6° more than two times the second angle. Find the measure of each angle.
A. first angle = 58° second angle = 122° B. first angle = 124° second angle = 56° C. first angle = 56° second angle = 124° D. first angle = 122° second angle = 58°
Mathematics
Simplify.[7 + (-3)]3
A. 64 B. 370 C. 1000 D. 316
Mathematics
Evaluate.
A. 13x2 + x4 B. 0 C. 13x2 - x4 D. -13x2 - x4
Mathematics