Solve the given problem by using Laplace transforms.A 20-H inductor, a 180-?F capacitor, and a voltage supply whose voltage is given by 
are connected in series. Find the current as a function of time if the initial charge on the capacitor and the initial current are both zero.
A. i = 0.83t sin 33.34t
B. i = 0.83t sin 16.67t
C. i = 0.42t sin 16.67t
D. i = 0.83t cos 16.67t
Answer: B
Mathematics
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Find the indicated term of the arithmetic sequence.4, 16, 28, 40, 52, . . . ; a20
A. 232 B. 158 C. 238 D. 148
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Find the linear equation that is the straight line through 
and 
.
?
A. 
B. ?
C. ?
D. ?
E. ?
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Solve.What percent of 90 is 0.9?
A. 15.01% B. 120% C. 10,000% D. 1%
Mathematics
Find absolute maximum and minimum values of the function, if they exist, over the indicated interval. Where no interval is specified, use the real line. List your answers in terms of ordered pairs.
(x) = sec2 x + 9csc2 x; (0, ? 2)
Mathematics