Pre-Calculus Homework Solutions 38

# Pre-Calculus Homework Solutions 38 - 10. Given: 25 7( y...

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10. Given: 25 52 7( y 2 3) 1 5 y Prove: 2 2 5 y Proof: 11. Given: Rectangle ABCD , AD 5 3, AB 5 10 Prove: AC 5 BD Proof: 12. Given: c 2 5 a 2 1 b 2 Prove: a 5 Ï c 2 2 b w 2 w Proof: 13. C; 8 1 x 5 12 x 5 ¬ 4 4 2 x 5 ¬ 4 2 4 or 0 Pages 97–99 Practice and Apply 14. Transitive Property 15. Subtraction Property 16. Substitution 17. Substitution 18. Division or Multiplication Property 19. Reflexive Property 20. Distributive Property 21. Substitution 22. Division or Multiplication Property 23. Transitive Property 24. Given: } 3 x 2 1 5 } 5 7 Prove: x 5 3 Proof: 25. Given: 2 x 2 7 5 } 1 3 } x 2 2 Prove: x 5 3 Proof: 26. Given: 4 2 } 1 2 } a 5 } 7 2 } 2 a Prove: a 1 Proof: 27. Given: 2 2 y 1 } 3 2 } 5 8 Prove: y } 1 4 3 } Proof: A D 10 10 33 B C Chapter 2 40 Statements Reasons 1. 25 5 2 7( y 2 3) 1 5 y 1. Given 2. 25 5 2 7 y 1 21 1 5 y 2. Dist. Prop. 3. 25 5 2 2 y 1 21 3. Substitution 4. 4 2 y 4. Subt. Prop. 5. 2 2 5 y 5. Div. Prop. Statements Reasons 1. Rectangle ABCD , AD 5 3, AB 5 10 1. Given 2. Draw segments AC and DB . 2. Two points determine a line. 3. n ABC and n BCD are right triangles. 3. Def. of rt. n 4. AC 5 Ï 3 2 1 1 w 0 2 w , DB 5 Ï 3 2 1 1 w 0 2 w 4. Pythag. Thm. 5. AC 5 BD 5. Substitution Statements Reasons 1. c 2 5 a 2 1 b 2 1. Given 2. c 2 2 b 2 5 a 2 2. Subt. Prop. 3. a 2 5 c 2 2 b 2 3. Symmetric Prop. 4. Ï a 2 w 5 Ï c 2 2 b w 2 w 4. Square Root Prop. 5. a 5 Ï c 2 2 b w 2 w 5. Square Root Prop. Statements Reasons a. } 3 x 2 1 5 } 5 7a . ? Given b. ? 2 1 }
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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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