Solve the problem.Use the formula Zt = 
to find the total impedance in a parallel circuit for the given values of Z1 and Z2.Z1 = 15(cos 180° + i sin 180°)Z2 = 3(cos 135° + i sin 135°)
A. 2.6(cos 234.4° + i sin 234.4°)
B. 2.6(cos 232.1° + i sin 232.1°)
C. 2.6(cos 227.4° + i sin 227.4°)
D. 2.6(cos 228.1° + i sin 228.1)
Answer: B
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and negative at 
What, if anything, does this indicate about the equation 
Illustrate with a sketch.
What will be an ideal response?
Solve the problem. Express the answer in scientific notation to two decimals.The earth is approximately 92,900,000 miles from the sun. If 
what is the distance to the sun in meters?
A. 1.50 × 1010 m B. 1.50 × 1011 m C. 5.7 × 1010 m D. 5.7 × 10-10 m
Find the slope of the line through the given points.(5, -9), (5, -5)
A. 4
B. - 
C. 0
D. Undefined
Solve the equation. Don't forget to first simplify each side of the equation, if possible.-9c + 8 + 7c = -3c + 13
A. -8 B. 5 C. 13 D. -13