Solve the problem.Ohm's law relates the current in a circuit, I, in amperes, the voltage of the circuit, V, in volts, and the impedance of the circuit, Z, in ohms, by the formula 
Find the current I when the impedance is 
and voltage is V = -3i volts.
A. 
amperes
B. 
amperes
C. 
amperes
D. (30 + 3i) amperes
Answer: B
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Solve.At Northwest High School, there are 1472 students in the Junior Class and 1012 students in the Senior Class. To let the juniors work with more experienced students, the teachers want to assign the students to committees with the same number of juniors in each committee and the same number of seniors in each committee. (For example, there might be 2 juniors and 3 seniors in every committee). What is the largest number of committees that can be formed?
A. 368 committees B. 4 committees C. 23 committees D. 92 committees
Solve the problem.Calculate the coordinates of the new location of the point (-6, -6) when it is rotated 45° clockwise about the origin. Remember that it is the matrix 
that rotates a point 45° clockwise about the origin.
A. 
B. 
C. 
D. 
Simplify.8.69 + 31.85 ÷ (7.65 - 3.1) - 1.4
A. 18.80 B. 14.29 C. 12.87 D. 7.51
Find values for the variables so that the matrices are equal.
= 
A. x = -2; y = -2 B. x = 1; y = -2 C. x = 1; y = 1 D. x = -2; y = 1