Pre-Calculus Homework Solutions 151

Pre-Calculus Homework Solutions 151 - 3 8 28. x 5 3(5) 15...

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28. } 3 8 } 5 ¬ } 5 x } 3(5) 5 8 x 15 5 ¬ 8 x } 1 8 5 } 5 ¬ x 29. } 5. a 18 } 5 ¬ } 1 4 } 4 a 5 ¬ 5.18(1) a 5 ¬ 1.295 30. } 2 3 3 x } 5 ¬ } 4 9 8 2 } 3 x (92) 5 ¬ 23(48) 276 x 5 ¬ 1104 x 5 ¬ 4 31. } 1 4 3 9 } 5 ¬ } 2 7 6 x } 13(7 x ) 5 ¬ 49(26) 91 x 5 ¬ 1274 x 5 ¬ 14 32. } 2 x 2 2 8 13 } 5 ¬ } 2 7 4 } (2 x 2 13)(7) 5 ¬ 28( 2 4) 14 x 2 91 5 ¬ 2 112 14 x 5 ¬ 2 21 x 5 ¬ 2 } 3 2 } 33. } 4 x 1 1 2 3 } 5 ¬ } 5 4 } (4 x 1 3)(4) 5 ¬ 12(5) 16 x 1 12 5 ¬ 60 16 x 5 ¬ 48 x 5 ¬ 3 34. } b b 1 2 1 1 } 5 ¬ } 5 6 } ( b 1 1)(6) 5 ¬ ( b 2 1)(5) 6 b 1 6 5 ¬ 5 b 2 5 b 1 6 5 ¬ 2 5 b 5 ¬ 2 11 35. } 3 x 2 2 1 } 5 ¬ } x 2 1 2 2 } (3 x 2 1)( x 1 2) 5 ¬ 2 4 3 x 2 1 6 x 2 x 2 2 5 ¬ 2 4 3 x 2 1 5 x 1 2 5 ¬ 0 (3 x 1 2)( x 1 1) 5 ¬ 0 3 x 1 2 5 ¬ 0 or x 1 1 5 0 3 x 5 ¬ 2 2 x 52 1 x 5 ¬ 2 } 2 3 } 36. The larger dimension of the photograph is 27.5 cm, so reducing this dimension to 10 cm will give the maximum dimensions of the reduced photograph. } 2
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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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