Divide using synthetic division.x2 + 4x - 15 divided by x + 7
A. x - 6 + 
B. x - 3 + 
C. x + 3 + 
D. x - 3
Answer: B
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Solve the initial value problem.
= - 
cos 
?, r(0) = -3
A. r = cos 
? - 4
B. r = -sin 
? - 3
C. r = - 
sin 
? - 3
D. r = sin 
? - 3
Name the quadrant or axis in which the point lies.(-15, -9)
A. quadrant I B. quadrant II C. quadrant III D. quadrant IV
Complex numbers are used in electronics to describe the current in an electric circuit. Ohm's law relates the current in a circuit, I, in amperes, the voltage of the circuit, E, in volts, and the resistance of the circuit, R, in ohms, by the formula 
Solve the problem using this formula.Find E, the voltage of a circuit, if I = (8 + 3i) amperes and R = (5 + 3i) ohms.
A. (31 - 39i) volts B. (39 + 31i) volts C. (39 - 31i) volts D. (31 + 39i) volts
Find all numbers for which the rational expression is not defined.
A. b = 0 B. b = 24 C. b = -6 D. b = 4