Simplify. Be sure to rationalize the denominator. Assume that all variables represent positive real numbers.
A. 
B. 5
C. 
D. 
Answer: D
Mathematics
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Solve the system of equations.
A. x = 1, y = 4, z = 2; (1, 4, 2) B. x = 4, y = 1, z = 2; (4, 1, 2) C. x = 4, y = 2, z = 1; (4, 2, 1) D. x = 1, y = 2, z = 4; (1, 2, 4)
Mathematics
Find the limit algebraically.
A. -9 B. 0 C. 9 D. 1
Mathematics
Determine whether the graph of the equation is symmetric with respect to the x-axis, the y-axis, and/or the origin.y = -2x
A. y-axis B. x-axis C. origin D. x-axis, y-axis, origin E. none
Mathematics
For the given functions f and g, find the requested composite function.f(x) = -4x + 5, g(x) = 6x + 3;
Find (g ? f)(x).
A. -24x + 33 B. -24x - 27 C. -24x + 17 D. 24x + 33
Mathematics