Factor the four-term polynomial by grouping.4xy - 12x + 9y - 27
A. (4x + y)(9y - 3)
B. (4x + 9y)(y - 3)
C. (4x - 3)(y + 9)
D. (4x + 9)(y - 3)
Answer: D
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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.
Solve.-7(x - 6) - 1x < -3(2x - 5) - 3x Put your answer in interval notation.
A. (-?, 27) B. (-?, -27) C. (27, ?) D. (-27, ?)
Rationalize the denominator.
A. 
- 
B. 
+ 
C. 
- 
D. 
Determine whether the relation represents a function. If it is a function, state the domain and range.
A. not a function B. function domain: {cat, dog} range: {Alice, Brad, Carl} C. function domain: {Alice, Brad, Carl} range: {cat, dog}