Evaluate the sum.
A. 14
B. -14
C. 228
D. 6
Answer: D
Mathematics
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Find the largest open interval where the function is changing as requested.Increasing y = 7x - 5
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Solve by the substitution method.x + 2y = 13x + 3y = 3
A. (0, 1) B. (1, 3) C. (-1, -1) D. (1, 0)
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Solve the problem.Two trains leave a train station at the same time. One travels east at 10 miles per hour. The other train travels west at 8 miles per hour. In how many hours will the two trains be 153 miles apart?
A. 8.5 hr B. 4.3 hr C. 9 hr D. 17 hr
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Construct a truth table for the proposition.p ? (p ? ~p)
A. 
B. 
C. 
D. 
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