Solve the problem.According to Ohm's law, the electric current I, in amperes, in a circuit varies directly as the voltage V. When 28 volts are applied, the current is 2 amperes. What is the current when 7 volts are applied?
A. 37 amperes
B. 98 amperes
C. 0.5 amperes
D. 14 amperes
Answer: C
Mathematics
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Find the focus and directrix of the parabola.x2 + 12y = 0
A. F: (-3, 0); D: y = 3 B. F: (0, -3); D: y = 3 C. F: (0, -3); D: y = -3 D. F: (0, -3); D: x = 3
Mathematics
Provide an appropriate response.Marcella is nearing retirement age and has some money to invest. She is deciding between Fund A which in the past has grown by a mean of 7% per year with a standard deviation of 2% and Fund B which has grown by a mean of 10% with a standard deviation of 6%. Which fund should she choose? Explain your thinking.
What will be an ideal response?
Mathematics
Solve the equation by factoring.4x2 + 13x = 12
A. 
B. 
C. 
D. 
Mathematics
Find the value of 2x2 + y + 6 when x = 4 and y = 2.
a. 64 b. 40 c. 82 d. 86 e. 92
Mathematics