Evaluate -(-x) for the given value of x.x = - 
A. 
B. 
C. - 
D. - 
Answer: D
Mathematics
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Simplify.-(3x2 - 8x + 2)
A. -3x2 - 8x - 2 B. 3x2 + 8x - 2 C. -3x2 + 8x - 2 D. 3x2 - 8x + 2
Mathematics
Solve the problem.For what numbers x, 0 ? x ? 2?, does sin x = -1?
A. ?
B. 
C. 
, 
D. none
Mathematics
Solve the system using the inverse of the coefficient matrix of the equivalent matrix equation. x + 3y = -8-14x - 4y = -2
A. (-3, 1) B. (1, -3) C. (-1, 3) D. (3, -1)
Mathematics
Rationalize the denominator.
A. 11
B. 
C. 7
D. 
Mathematics