Use the given sets to determine the solution set. U = {q, r, s, t, u, v, w, x, y, z} A = {q, s, u, w, y} B = {q, s, y, z} C = {v, w, x, y, z}A ? (B ? C)
A. {q, s, u, w, y, z}
B. {q, r, w, y, z}
C. {q, y, z}
D. {q, s, w, y}
Answer: D
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Determine whether the given function is one-to-one. If so, find a formula for the inverse.f(x) = 
A. f-1(x) = 
B. Not a one-to-one function
C. f-1(x) = 
D. f-1(x) = 
The calculator graphs shows the x-values of the x-intercepts of the graph of the polynomial in the equation. Use the graphs to solve the equation.x2 -x - 6 = 0
A. {-1, -6} B. {-3, -2} C. {-2, 3} D. {-3, 2}
Use a graphing calculator to solve the nonlinear system. Give x- and y-coordinates to the nearest hundredth.x2 + y2 = 13.85x = 3y - 1
A. {(3.42, 1.47), (-3.62, -0.87)} B. {(-3.41, -1.47), (3.62, 0.87)} C. {(-11.26, -3.42), (11.06, 4.02)} D. {(1.47, 3.42), (-0.87, -3.62)}
Divide. Simplify, if possible.16 ÷ 
A. 
B. 
C. 28
D. 4