What is –(–x), if x = –8 ?
A) -8
B) 8
C) -7
D) 7
E) 10
A) -8
Mathematics
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Solve the problem.Use the graph of f(t) = sin t given below to evaluate 
graphically.
A. 0 B. 1 C. -0.5 D. 0.5
Mathematics
Solve the system of equations using substitution. Note that the system may be inconsistent or consistent with dependent equations.
A. (3, 5) B. (5, 3) C. All ordered pairs along 3x + 15y = 9 D. No solution
Mathematics
Solve the system of linear equations.-6x + 9y = 72-3x + 6y = 48
A. (0, 8) B. No solution C. (0, 9) D. (-1, 9)
Mathematics
Evaluate the expression for the given values of the variables. a(8 - b)
for a = -1.6 and b = 7.4
A. -0.86 B. -20.1 C. -0.96 D. -20.2
Mathematics