Perform the indicated operations in the proper order.
A. 
B. - 
C. - 
D. 
Answer: C
Mathematics
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Find the line of symmetry.f(x) = 4x2 + 24x + 31
A. x = -5 B. x = -3 C. x = 3 D. x = 5
Mathematics
Solve the equation graphically, numerically, or symbolically. If appropriate, round the solution to hundredths. ?x? = 11
A. 11 B. 11, -11 C. -11 D. 121
Mathematics
Simplify the expression.
+ 
A. 2 cot x B. 2 csc x C. csc 2 x D. csc x
Mathematics
Use Cramer's rule to solve the linear system.
A. x = -9, y = -8 B. x = 8, y = 9 C. x = -8, y = 9 D. x = 9, y = 8
Mathematics