Add or subtract.5i + (-3 - i)
A. 3 - 4i
B. -3 + 6i
C. 3 - 6i
D. -3 + 4i
Answer: D
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Find the composition.f(x) = -4x - 3; g(x) = 3x2 + 8x - 8Find (f ? g)(-9).
A. 425 B. 355 C. 3523 D. -655
Solve the problem.An airline charter service charges a fare per person of $450 plus $40 for each unsold seat. The airplane holds 75 passengers. Let x represent the number of unsold seats and write an expression for the total revenue R for a charter flight.
A. R(x) = 75(450 + 40x) or 33,750 + 3000x B. R(x) = x(450 + 40x) or 450x + 40x2 C. R(x) = (75 - x)(450 + 40x) or 33,750 + 3000x - 40x2 D. R(x) = (75 - x)(450 + 40x) or 33,750 + 2550x - 40x2
Match the graph to the function listed whose graph most resembles the one given.
A. absolute value function B. linear function C. constant function D. reciprocal function
Multiply and simplify any radicals in your answer. Assume that all variables represent positive real numbers.(8
+ 6)2
A. 740 + 96
B. 710 + 96
C. 740 - 96
D. 668 + 96