Solve the given equation by finding the unknown value.? - 5 = 12
A. 17
B. 0
C. 12
D. 7
Answer: A
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Determine if the series converges or diverges. If the series converges, find its sum.
A. converges; - 
B. converges; ?
C. diverges
D. converges; 
Solve the problem.If a resistor and inductor are connected in series to a battery of emf ?, the current in the circuit is given by 
where ? is the time constant of the circuit, R is the resistance, and t is the time since the circuit was closed. Find the expression for dI/dt.
A. - 
et/?
B. 
e-t/?
C. 
e-t/?
D. 
Find the principal. Round to the nearest cent.Rate: 7.5%Time: 150 daysInterest: $92.20
A. $2,991.38 B. $29.50 C. $295.04 D. $2,950.40
Use the laws of exponents to simplify each expression using positive exponents only. Assume all variables represent nonzero real numbers.
3
A. 
B. 
C. 
D. 