Pre-Calculus Homework Solutions 43

Pre-Calculus - AQ 25 Given AB DE C is the midpoint of BD Prove AC CE 1 AD 2 1 39 1 2 4 A B C D 19 5 8 E BP Proof Statements 1 12 3 2 4 Reasons 1 AB

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25. Given: A w B w > D w E w C is the midpoint of B w D w . Prove: A w C w > C w E w Proof: 26. Given: A w B w > w E w F w and B w C w > w D w E w Prove: A w C w > D w F w Proof: 27. Sample answers: L w N w > Q w O w and L w M w > M w N w > R w S w > S w T w > Q w P w > P w O w 28. Sample answer: You can use segment addition to find the total distance between two destinations by adding the distances of various points in between. Answers should include the following. • A passenger can add the distance from San Diego to Phoenix and the distance from Phoenix to Dallas to find the distance from San Diego to Dallas. • The Segment Addition Postulate can be useful if you are traveling in a straight line. 29. B; AD 5 ¬ AB 1 BC 1 CD 5 ¬ 14 } 1 4 } 1 12 } 3 4 } 1 12 } 1 4 } 5 ¬ 39 } 1 4 } AQ 5 ¬ } 1 2 } AD 5 ¬ } 1 2 } 1 39 } 1 4 } 2 5 ¬ 19 } 5 8 } BP 5 ¬ } 1 2 } BC 5 ¬ } 1 2 } 1 12 } 3 4 } 2 5 ¬ 6 } 3 8 } AP 5 ¬ AB 1 BP 5 ¬ 14 } 1 4 } 1 6 } 3 8 } 5 ¬ 20 } 5 8 } AP 5 ¬ AQ 1 QP 20 } 5 8 } 5 ¬ 19 } 5 8 } 1 QP 1 5 ¬ QP 30. Let x be the price of a box of popcorn. Then a tub of popcorn costs 2 x .
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This note was uploaded on 12/19/2011 for the course MAC 1140 taught by Professor Dr.zhan during the Fall '10 term at UNF.

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