Ohm's Law for the current I in a circuit with voltage E, resistance R, capacitance reactance XC, and inductive reactance XLis 
Use this law to solve the problem.Find XCif I = 6 - 2i, E = 5 - 5i, R = 9, and 
A. - 
- 8i
B. 
+ 8i
C. 
- 8i
D. - 
+ 8i
Answer: C
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Perform the indicated operation.43 + (-70)
A. 27 B. -27 C. 113 D. -113
Solve the problem.A searchlight is shaped like a paraboloid of revolution. If the light source is located 3 feet from the base along the axis of symmetry and the opening is 14 feet across, how deep should the searchlight be?
A. 0.3 feet B. 16.3 feet C. 4.1 feet D. 12.3 feet
Provide an appropriate response.Suppose you have the opportunity to invest $6000 in a business venture such that you will be repaid $8000 in five years. On the other hand, you can put the $6000 in a savings account that pays 5.25% compounded monthly. Which investment is better?
Fill in the blank(s) with the appropriate word(s).
Rewrite the expression as the sine, cosine, or tangent of a double angle. Then find the exact value of the trigonometric expression without the use of a calculator.2 sin 112.5° cos 112.5°
A. - 
B. 
C. 
D. - 