Find the indicated roots.Fourth roots of -16; trigonometric form
A. 1 + i, 1 - i, -1 + i, -1 - i
B. 
+ 
i, 
- 
i, - 
+ 
i, - 
- 
i
C. 8
+ 8
i, 8
- 8
i, -8
+ 8
i, -8
- 8
i
D. 2 + i, 2 - i, -2 + i, -2 - i
Answer: B
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Solve the problem.The mathematical model 
represents the cost in dollars a company has in manufacturing x items during a month. Based on this model, how many items were produced if expenses were $440,000 in one month?
A. 134 items B. 600 items C. 733 items D. 466 items
Use these sets to find the following. Identify any disjoint sets.Let U = {5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15}, M = {5, 7, 9, 11}, 
and 
(N ? R) ? Q
A. {5} B. ?; N and R are disjoint sets. C. {5, 7} D. {7}
State the degree of the polynomial equation.x3 + 7x2 - x - 7 = 0
A. 4 B. 5 C. 6 D. 3
Express the given function H as a composition of two functions f and g such that H(x) = (f ? g)(x).H(x) = 
A. f(x) = 
, g(x) = x2 - 9
B. f(x) = 
, g(x) = - 
C. f(x) = 
, g(x) = x - 9
D. f(x) = 
, g(x) = x2 - 9