Find the domain of the rational expression. 
A. {x|x is a real number and x ? 8 and x ? 1}
B. {x|x is a real number}
C. {x|x is a real number and x ? 8}
D. {x|x is a real number and x ? -8}
Answer: C
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Solve the problem.At noon, ship A was 14 nautical miles due north of ship B. Ship A was sailing south at 14 knots (nautical miles per hour; a nautical mile is 2000 yards) and continued to do so all day. Ship B was sailing east at 
and continued to do so all day. The visibility was 5 nautical miles. Did the ships ever sight each other?
A. Yes. They were within 4 nautical miles of each other. B. No. The closest they ever got to each other was 7.3 nautical miles. C. Yes. They were within 3 nautical miles of each other. D. No. The closest they ever got to each other was 6.3 nautical miles.
Add.-11 + 36.87 + (-47.06)
A. -94.93 B. 72.93 C. 94.93 D. -21.19
Solve the problem using the idea of labeling.How many permutations are there of the letters in the word TENNESSEE?
A. 7560 B. 362,880 C. 3780 D. 81
Provide an appropriate response.Which of the following is the correct way to evaluate the expression 6 + 4 ? 4?
A. 6 + 4 ? 4 = 16 + 4 = 28 B. 6 + 4 ? 4 = 10 ? 4 = 40 C. 6 + 4 ? 4 = 6 + 16 = 22 D. 6 + 4 ? 4 = 24 + 16 = 40