Simplify the expression.
A. 9x
B. 83x
C. x2
D. x
Answer: D
Mathematics
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Use the elimination method to solve the system of linear equations. x + 8y = 672x + 7y = 62
A. (2, 9) B. (3, 8) C. No solution D. (-3, 9)
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Find the product. Assume that all variable factors in the denominator are not equal to zero.
? 
A. 
B. 
C. 
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Express the sum or difference as a product of sines and/or cosines.sin(10?) - sin(4?)
A. 2 sin(3?) cos(7?) B. 2 cos(4?) cos(7?) C. 2 sin(3?) D. 2 sin(7?) cos(3?)
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