Solve the problem.When a particular circuit containing a resistor, an inductor, and a capacitor in series is connected to a battery, the current i (in amperes) is given by i = 27e-3t(e2.6t - e-2.6t) where t is the time (in seconds). Find the time at which the maximum current occurs. Round to the nearest tenth of a second.
A. 0.5 sec
B. 1.5 sec
C. 0.6 sec
D. 1.4 sec
Answer: A
Mathematics
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A. 86°46' B. 93°46' C. 94°46' D. 87°46'
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Solve the problem.From a distance of 1210 feet from a spotlight, the angle of elevation to a cloud base is 44°. Find the height of the cloud base to the nearest foot.
A. 841 ft B. 870 ft C. 1253 ft D. 1168 ft
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Find the zeros of the quadratic function using the Square Root Method. List the x-intercepts of the graph of the function.f(x) = x2 - 49
A. x = 7 B. x = -7, x = 7 C. x = -7 D. x = -2,401, x = 2,401
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Find the unknown number in the proportion. Round answer to the nearest hundredth when necessary.
= 
A. 2.5 B. 20 C. 144.4 D. 10
Mathematics