Pre-Calculus Homework Solutions 148

Pre-Calculus Homework Solutions 148 - 17. 7 11 20, so 7,...

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17. x 1 7 ¬ . 11 x ¬ . 4 7 1 11 ¬ . 2 x 18 ¬ . 2 x 9 ¬ . x 4 , x , 9 18. In the two triangles, each has a side of measure 12 and the shared side is congruent to itself. The hypotenuse of the right triangle has a length of 13.86, which is shorter than the third length of the other triangle, 14. So the SSS Inequality allows us to conclude that x . 90. In any triangle, an angle has measure less than 180, so we can write the compound inequality 90 , x , 180. 19. Let d be the distance between NewYork and Atlanta. 554 1 399 ¬ . d 953 ¬ . d or d , 953 399 1 d ¬ . 554 d ¬ . 155 Therefore, 155 mi , d , 953 mi. 20. A; 3 1 8 5 11, so 3, 8, 11 cannot be the sides of a triangle. Chapter 5 Standardized Test Practice Pages 278–279 1. D; there are 36 inches in a yard, so there are 36 2 or 1296 square inches in a square yard. So there are 1296(80) or 103,680 yarn fibers in a square yard. 2. B; 6 1 7 1 6 1 4 1 12 1 11 5 46 units 3. B; the converse is false because if an angle is acute it can have any measure between 0 and 90.
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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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