Solve the problem.Use the formula Zt = 
to find the total impedance in a parallel circuit for 
and 
A. 1.7(cos 64.9° + i sin 64.9°)
B. 1.7(cos 69.1° + i sin 69.1°)
C. 1.7(cos 140.9° + i sin 140.9°)
D. 1.7(cos 134.7° + i sin 134.7°)
Answer: A
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Solve the linear equation algebraically.-8y - 6 = -2y + 6
A. -2 B. 1 C. -1 D. 2
Solve the problem.A rectangular piece of cardboard measuring 13 inches by 50 inches is to be made into a box with an open top by cutting equal-size squares from each corner and folding up the sides. Let x represent the length of a side of each such square. What is the maximum possible volume of the box? If necessary, round to the nearest hundredth.
A. 46,569.59 in.3 B. 5796.01 in.3 C. 924.01 in.3 D. 5357.08 in.3
Multiply or divide and leave the answer in trigonometric notation.4(cos 31° + i sin 31°) ? 5(cos 13° + i sin 13°)
A. 9(cos 44° + i sin 44°) B. 20(cos 44° + i sin 44°) C. 9(cos 43° + i sin 43°) D. 20(cos 18° + i sin 18°)
Solve, finding all solutions in [0, 2?).cos 2x + sin x = 1
A. 
, 
, 
, 
B. 0, ?, 
, 
C. 
, 
D. 
, 