Solve the problem.If the impedance of a resistor in a current is Z1 = (6 + 5i) ohms and the impedance of a second resistor is Z2 = (4 - 7i) ohms, find the total impedance of the two resistors when they are placed in a series (the sum of the two impedances).
??Series Circuit
A. (10 - 2i) ohms
B. (-2 + 12i) ohms
C. (-10 + 2i) ohms
D. (10 + 2i) ohms
Answer: A
Mathematics
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and x is in quadrant II.
What will be an ideal response?
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Write the augmented matrix for the system.-2x + 3y + 6z = 44 2x - 2y + 6z = 46 6x + 3y + 4z = 94
A. 
B. 
C. 
D. 
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Divide. Assume that all variables represent non-negative real numbers.
A. 2x2
B. 2x4
C. 2
D. 2x2
Mathematics
First, use front-end rounding to round each number and estimate the answer. Then, find the exact answer.Tran's subtotal at Scramble's Electronics is $333.09. The sales tax on these items is $23.70. What was Tran's total bill?
A. Estimate: $356.79; exact: $356.79 B. Estimate: $320; exact: $356.79 C. Estimate: $280; exact: $309.39 D. Estimate: $300; exact: $356.79
Mathematics