Add or subtract as indicated. Write your answer in the form a + bi.(2 - 4i) + (9 + 2i)
A. -11 + 2i
B. 11 - 2i
C. 11 + 2i
D. -7 + 6i
Answer: B
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Solve the equation. If the equation has no real solution, so state.
- 3 = 
A. No solution B. x = -5 C. x = 25 D. x = -25
Graph the function.f(x) = 
A. 
B. 
C. 
D. 
Use a graphing utility to solve the system of equations. Express the solution rounded to two decimal places.
A. x = 1.18, y = 1.03; x = 1.07, y = 1.52; x = -0.91, y = 2.88 B. no solution C. x = 1.99, y = 0.13; x = 1.04, y = 1.70; x = -0.91, y = 2.95 D. x = 1.81, y = 0.28; x = 0.20, y = 2.45; x = -0.20, y = -2.45
For the demand function given, find the elasticity at the given price and state whether the demand is elastic, inelastic, or whether it has unit elasticity.q = D(x) = 
; x = 60
A. 
; inelastic
B. 1; unit elasticity
C. 
; elastic
D. 
; inelastic