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

Mathematics

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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.

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Add.-11 + 36.87 + (-47.06)

A. -94.93 B. 72.93 C. 94.93 D. -21.19

Mathematics

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

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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

Mathematics