Solve.The voltage E in an electrical circuit is given by E = 5.6 cos 40?t, where t is time measured in seconds. Find the period.
A. 
B. 20?
C. 
D. 20
Answer: A
Mathematics
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Solve.x3 - 64
A. -4, -1 ± i
B. 4, -2 ± 2i
C. -4, -2 ± 2i
D. 4, -1 ± i
Mathematics
Solve the given equation for x.y = 7 sin x
A. x = 7 sin-1 y
B. x = sin-1 
C. x = 
sin-1 y
D. x = sin-1 7y
Mathematics
Solve the problem.Use Fleury's algorithm to find an Euler circuit for the following graph.
What will be an ideal response?
Mathematics
Solve.The current I in an electrical conductor varies inversely as the resistance R of the conductor. The current is 8 amperes when the resistance is 492 ohms. What is the current when the resistance is 384 ohms?
A. 6.2 amperes B. 0.16 amperes C. 0.1 amperes D. 10.3 amperes
Mathematics