Solve the variation problem.If the voltage, V, in an electric circuit is held constant, the current, I, is inversely proportional to the resistance, R. If the current is 240 milliamperes when the resistance is 3 ohms, find the current when the resistance is 18 ohms.
A. 1434 milliamperes
B. 120 milliamperes
C. 1440 milliamperes
D. 40 milliamperes
Answer: D
Mathematics
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Find at least three nonzero terms [including a0, at least two cosine terms (if they are not all zero) and at least two sine terms (if they are not all zero)] of the Fourier series for the given function.f(x) = 
A. f(x) = 
- 
B. f(x) = 
- 
C. f(x) = 
+ 
D. f(x) = 
+ 
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Represent the fraction as a decimal by using the long-division algorithm.
A. 0.428
B. 0.
C. 0.
D. 0.429
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Solve the equation.4x - 3 = 643x
A. 
B. 
C. 
D. 
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Compute the compound interest.$7000 is invested at 6% compounded quarterly. In how many years will the account have grown to $12,000? Round to the nearest tenth of a year.
A. 9.1 yr B. 9.3 yr C. 1.1 yr D. 17.7 yr
Mathematics