Solve.According to Ohm's law, the electric current I, in amperes, in a circuit varies directly as the voltage V. When 19 volts are applied, the current is 3 amperes. What is the current when 20 volts are applied?
A. 42 amperes
B. 6.33 amperes
C. 3.16 amperes
D. 126.666667 amperes
Answer: C
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Assuming that the equations define x and y implicitly as differentiable functions 
find the slope of the curve 
at the given value of t.2x + 4x3/2 = t3 + t, y(t + 1) - 4t
= 9, t = 0
A. -6
B. 
C. 6
D. 3
Factor completely using the trial and error method to factor trinomials. If unfactorable, indicate that the polynomial is prime.-24x2 - 20x + 24
A. (-12x + 8)(2x + 3) B. prime C. -4(3x - 2)(2x + 3) D. -4(3x + 2)(2x - 3)
Choose a strategy and solve.Originally your car cost $13,661. Four years later your car cost $19,291. How much did the price increase?
A. No increase, it was a decrease. B. $6630 C. $4630 D. $5630
Write the conjugate 
of the complex number z. Then find z
.z = 5 + 6i
A. 
= 5 - 6i, z
= -11
B. 
= 5 - 6i, z
= 25 - 36i
C. 
= 5 - 6i, z
= 61
D. 
= 5 - 6i, z
= 25 - 36i2