A point P(r, ?) in polar coordinates is given. Determine the rectangular coordinates P(x, y).(-9, 120°)
A. 
B. 
C. 
D. 
Answer: B
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Solve.An electrical light circuit in Alison's shop had a load of 3400 watts. She changed the circuit to twelve 60-watt bulbs and twenty 100-watt bulbs. What fraction represents a comparison of the old load with the new load?
A. 
, or 
B. 
, or 
C. 
, or 
D. 
, or 
Solve the problem.If the voltage in an electric circuit is held constant, the current varies inversely as the resistance. If the current is 210 milliamperes (mA) when the resistance is 3 ohms, find the current when the resistance is 21 ohms.
A. 30 mA B. 90 mA C. 1463 mA D. 1470 mA
Consider only the discriminant, b2 - 4ac, to determine whether one real-number solution, two different real-number solutions, or two different imaginary-number solutions exist.x2 + 12x + 36 = 0
A. Two different real-number solutions B. One real solution C. Two different imaginary-number solutions
Two sides and an angle are given. Determine whether the given information results in one triangle, two triangles, or no triangle at all. Solve any triangle(s) that results.B = 43°, b = 4, a = 25
A. one triangle A = 42°, C = 96°, c = 30.5 B. one triangle A = 41°, C = 95°, c = 29 C. one triangle A = 39°, C = 97°, c = 26 D. no triangle