Write the phrase as a mathematical expression. Use x as the variable.6 times some number
A. 
B. 6 + x
C. 6 - x
D. 6x
Answer: D
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Find the limit.
Solve the cubic equation using factoring and the quadratic formula.x3 + 1 = 0
A. {-1, 1 ± i
}
B. {-1, -1 ± i
}
C. {-1, ± i}
D. 
Find the difference quotient, 
, for the function and simplify it.g(x) = 4x2 + 15x - 5
A. 8xh + 15h + 15h2 B. 8x + 15 + 4h C. 4x + 6 + 8h D. 8x + 15
Find the inverse of the function and state its domain and range .{(-3, 4), (-1, 5), (0, 2), (2, 6), (5, 7)}
A. {(3, -4), (1, -5), (0, -2), (-2, -6), (-5, -7)}; D = {3, 1, 0, -2, -5}; R = {-7, -6, -5, -4, -2} B. {(3, 4), (1, 5), (0, 2), (-2, 6), (-5, 7)}; D = {3, 1, 0, -2, -5}; R = {2, 4, 5, 6, 7} C. {(-3, -4), (-1, -5), (0, -2), (2, -6), (5, -7)}; D = {-3, -1, 0, 2, 5}; R = {-7, -6, -5, -4, -2} D. {(4, -3), (5, -1), (2, 0), (6, 2), (7, 5)} D = {2, 4, 5, 6, 7}; R = {-3, -1, 0, 2, 5}