Divide. Simplify if possible.
÷ 
A. 
B. 
C. 
D. 
Answer: A
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Given the term, idenitfy the coefficient, the variable, and the exponent of the variable.-k6
A. coefficient: 6 variable: k exponent: 1 B. coefficient: 1 variable: k exponent: 6 C. coefficient: -1 variable: k6 exponent: 0 D. coefficient: -1 variable: k exponent: 6
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 + 9i) amperes and R = (4 + 7i) ohms.
A. (92 - 31i) volts B. (92 + 31i) volts C. (-31 + 92i) volts D. (-31 - 92i) volts
Graph the function.y = -2 cos
A. 
B. 
C. 
D. 
Express in terms of i.
A. ±14
B. -i
C. -14i
D. 14i