Write the sum or difference as a product containing only sines and/or cosines.sin 
+ sin 
A. 2 sin 
cos ?
B. 2 cos(7?) sin ?
C. 2 sin 
sin ?
D. 2 sin(7?)
Answer: A
Mathematics
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Solve the equation.
(10x - 20) = 
(8x - 4)
A. 1
B. -1
C. -6
D. 
Mathematics
Provide an appropriate response.
Why could (7, -1) not be a solution of the system that is graphed?
What will be an ideal response?
Mathematics
Identify the vertex of the parabola.y = 2x2 - 20x + 52
A. (2, 5) B. (5, 2) C. (-2, -5) D. (-5, -2)
Mathematics
Solve the problem.Round 688,537 to the nearest ten thousand.
A. 680,000 B. 690,000 C. 700,000 D. 688,000
Mathematics