Solve the system.
A. (0, 0)
B. (4, 0)
C. inconsistent (no solution)
D. y = - 
+ 2, where x is any real number
Answer: D
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Solve.The current I in an electrical conductor varies inversely as the resistance R of the conductor. The current is 5 amperes when the resistance is 342 ohms. What is the current when the resistance is 864 ohms?
A. 0.08 amps B. 12.6 amps C. 0.51 amps D. 2 amps
Construct a truth table for the statement.r ? (r ? ~r)
A. 
| T | T |
B.
| T | F |
C.
| T | T |
D.
| T | F |
Solve the problem.A football team gained 21 yards on one play, lost 30 yards on another, and gained 40 yards on the last play of the first half. They had already gained 212 yards during the half. What was the total yardage gain for the first half?
A. 303 yards B. 181 yards C. 273 yards D. 243 yards
Solve.A signal is made by placing 3 flags, one above the other, on a flag pole. If there are 6 different flags available, how many different signals can be flown?
A. 120 B. 18 C. 216 D. 20