Rationalize the numerator. Then simplify your answer.
?
A. 
B. 
C. 
D. 
E. 
Answer: E
Mathematics
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Given f(x) and g(x), find the composition.f(x) = -3x - 9; g(x) = 4x2 + 5x - 2Find (g ? f)(-6).
A. 159 B. 367 C. -345 D. 79
Mathematics
? is an acute angle and sin ? is given. Use the Pythagorean identity sin2 ? + cos2 ? = 1 to find cos ?.sin ? = 
A. 3
B. 2
C. 
D. 
Mathematics
Determine if the graph is symmetric with respect to x-axis, y-axis, and/or the origin.
A. x-axis, origin B. x-axis C. Origin D. y-axis
Mathematics
Solve using elimination.
A. x = 0, y= -3; x = 0, y = 3 or (0, -3), (0, 3) B. x = -8, y= 0; x = 8, y = 0 or (-8, 0), (8, 0) C. x = 0, y= -8; x = 0, y = 8 or (0, -8), (0, 8) D. No real solution exists.
Mathematics