Solve the variation problem.According to Ohm's law, the electric current I, in amperes, in a circuit varies directly as the voltage V. When 15 volts are applied, the current is 3 amperes. What is the current when 11 volts are applied?
A. 55 amperes
B. 5 amperes
C. 29 amperes
D. 2.2 amperes
Answer: D
Mathematics
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Find all the roots of the complex number. Put answers in standard form.Fourth roots of -16
A. 
+ 
j, 
- 
j, - 
+ 
j, - 
- 
j
B. 2 + j, 2 - j, -2 + j, -2 - j
C. 1 + j, 1 - j, -1 + j, -1 - j
D. 8
+ 8
j, 8
- 8
j, -8
+ 8
j, -8
- 8
j
Mathematics
Solve the problem.Emma's rubik cube has 24 cm2 of area. Each side of Sophie's cube is twice as wide as Emma's. Find the area of Sophie's cube.
A. 96 cm2 B. 8 cm2 C. 48 cm2 D. 16 cm2
Mathematics
Graph.y = 
x
A. 
B. 
C. 
D. 
Mathematics
Evaluate as requested.Given that f(x) = 
, find f 
.
A. - 
B. 
C. - 
D. 
Mathematics