Pre-Calculus Homework Solutions 150

Pre-Calculus Homework Solutions 150 - 11. scale on map (cm)...

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11. 5 ¬ } 2 1 0 .5 0 } 5 ¬ } 2 x .4 } 1.5 x 5 ¬ 200(2.4) 1.5 x 5 ¬ 480 x 5 ¬ 320 The cities are 320 miles apart. Pages 285–287 Practice and Apply 12. 5 } 1 8 0 } or 4 : 5 13. 5 } 165 7 2 6 76 } or 76 : 89 14. 5 } 2 1 0 8 8 } or 104 : 9 15. 5 } 4 1 4 7 ,1 4 2 7 5 } or about 25.3 : 1 16. } B A H C } 5 } 7 2 0 0 2 2 1 0 0 } 5 } 2 6 0 0 } or 1 : 3 17. Rewrite 3 : 4 as 3 x :4 x and use those measures for the two lengths of cable. 3 x 1 4 x 5 ¬ 42 7 x 5 ¬ 42 x 5 ¬ 6 Use this value of x to find the measures of the two lengths of cable. 3 x 5 3(6) or 18 ft 4 x 5 4(6) or 24 ft 18. Rewrite 2 : 5 : 3 as 2 x :5 x :3 x and use those measures for the angles of the triangle. 2 x 1 5 x 1 3 x 5 ¬ 180 10 x 5 ¬ 180 x 5 ¬ 18 Use this value of x to find the measures of the angles of the triangle. 2 x 5 2(18) or 36 5 x 5 5(18) or 90 3 x 5 3(18) or 54 19. Rewrite 6 : 9 : 10 as 6 x :9 x :10 x and use those measures for the angles of the triangle. 6
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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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