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 = (18 + i) amperes and R = (2 + 3i) ohms.
A. (-18 - 56i) volts
B. (33 - 56i) volts
C. (33 + 56i) volts
D. (-18 + 56i) volts
Answer: C
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Factor the binomial completely.27 - t3
A. (3 + t)(9 - 3t + t2) B. (3 + t)(9 - t2) C. (3 - t)(9 + 3t + t2) D. (3 - t)(9 + t2)
Let A = {1, 3, 5, 7}B = {5, 6, 7, 8}C = {5, 8}D = {2, 5, 8}U = {1, 2, 3, 4, 5, 6, 7, 8}.Determine whether the statement is true or false.{5} ? D
A. False; 5 is an element of the set, not a subset. B. False; 5 is not a subset of D. C. True D. False; 5 is not an element of D.
Write the following as a rate in lowest terms.78 printers for 60 computers
A. 
B. 
C. 
D. 
Solve the problem.A house was purchased for $79,000. After 9 years the value of the house was $106,000. Express the house's value V(t) in terms of time t in years.
A. V(t) = 3000t B. V(t) = 3000t + 79,000 C. V(t) = 9t + 79,000 D. V(t) = 106,000