Solve the problem.In the study of electrical circuits, the impedance of electron flow in an alternating-current (AC) circuit is expressed as a complex number. The total impedance in an AC circuit connected in series is the sum of the individual impedances. If the impedance in one part of the circuit is 
ohms and in another part is 
ohms, what is the total impedance in the circuit?
A. (-10 - 7i) ohms
B. (-10 + 7i) ohms
C. -10 ohms
D. (-20 + 21i) ohms
Answer: B
Mathematics
You might also like to view...
Use Euler's formula to answer the question.A pyramid has 6 faces. How many edges does it have?
A. 5 B. 10 C. 6 D. 4
Mathematics
Solve. Clear decimals first.1.8x + 1.9 = -88.1 + 10.8x
A. -99 B. 10 C. 8.3 D. 8.5
Mathematics
The graph of a logarithmic function is given. Select the function for the graph from the options.
A. f(x) = log3(x + 2) B. f(x) = log3x C. f(x) = log3x + 2 D. f(x) = log3(x - 2)
Mathematics
Solve the system by using the inverse of the coefficient matrix. x + y + z = 4 x - y + 4z = -195x + y + z = 24
A. No solution B. (-5, 4, 5) C. (-5, 5, 4) D. (5, 4, -5)
Mathematics