Divide and simplify to the form a + bi.
A. 
- 
i
B. 
+ 
i
C. 
+ 
i
D. 
+ 
i
Answer: A
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Solve the given applied problem.A rectangle has area A m2 with A = w(9 - w), where w is the width of the rectangle and the perimeter is 18m. Sketch the graph of A as a function of w.
A. 
B. 
C. 
D. 
Solve f(x) = g(x). Find the points of intersection of the graphs of the two functions.f(x) = x2 + 6x + 23g(x) = 23
A. x = 
B. x = -6, x = 0
C. x = 0, x = 6
D. no real numbers
Solve the problem.A power outage affected all homes and businesses within a 2 mi radius of the power station. If the power station is located 3 mi west and 2 mi north of the center of town, find an equation of the circle consisting of the furthest points from the station affected by the power outage.
A. (x - 3)2 + (y - 2)2 = 4 B. (x + 3)2 + (y + 2)2 = 4 C. (x - 3)2 + (y + 2)2 = 4 D. (x + 3)2 + (y - 2)2 = 4
Use the graph of y to solve the inequality.y < 0y = -2x + 3
A. 
B. 
C. 
D. {x|x > 3}