Find the value of n. Round to the nearest hundredth if necessary.
= 
A. 3.15
B. 2.85
C. 1928.93
D. 3
Answer: D
Mathematics
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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 = 25e-3t(e2.6t - e-2.6t) where t is the time (in seconds). Find the time at which the maximum current occurs.
A. 1.4 s B. 0.6 s C. 1.5 s D. 0.5 s
Mathematics
Evaluate the expression.
A. 120 B. 30 C. 84 D. 39
Mathematics
Solve the equation.log7x = -2
A. 128
B. 
C. 
D. 49
Mathematics
Solve using Cramer's rule. 2x + 9y - z = 89 x + 9y + 5z = 107 7x + y + z = 55
A. (7, 7, 4) B. (6, 9, 4) C. (9, 4, 9) D. (6, -9, -4)
Mathematics