fall 08 key - a) 1 . 2 b) 8 . c) 2 . 1 25. 2 1 26. Circle,...

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MAT 1050 Final Exam Answer Key Fall 2008 1. () 2 5 2 3 2 2 1 2 1 11 4 y y y y + + 2. 3 4 7 4 9 z y x 3. 15 7 3 + 4. 36 5. {} 6. ( ][ ) , 1 6 , 7 . The speeds are 48 mph and 64 mph. 8. x x a = 1 4 9. ( ] 1 , 10. 25 11. 2 2 2 + h a 12. 6 4 3 = x y 13. 2 3 = x 14. The perimeter is 60 inches. ( ) 0 , 3 15. { } i 2 2 , 0 ± 16. Vertex () 6 , 0 Opens down Intercepts: 3 + = x y x 6 1 -2 2 -1 -1 1 -2 2 3 3 -3 -3 4 4 -4 -4 5 5 -5 6 -6 ( ) 6 , 0 ( ) 0 ,
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17. 1 + x 18. {} 9 19. 1 , 2 5 20. () ( ) , 3 4 , 21. a) Domain () ( ] 4 , 2 2 , b) Range () ( ] 3 , 0 0 , c) () 4 2 = f d) () 3 0 = f and () 3 5 = f 22. {} 125 , 8 23. a) () 3 1 3 log 27 = b) ( ) 3 125 log 5 1 = c) 1 1 log = b b 24.
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Unformatted text preview: a) 1 . 2 b) 8 . c) 2 . 1 25. 2 1 26. Circle, center ( ) 4 , 3 Radius 3 = ( ) 1 , 3 ( ) 4 , ( ) 4 , 3 ( ) 4 , 6 ( ) 7 , 3 1-2-1 2 3-3-4-5-6 x -7 y 27. ( ) ( ) ( ) ( ) 5 . 1 sin 5 . 1 cos tan cos < < < 28. a) 18 2 radians b) o 60 29. ( ) = 28 sin 2 2 x 30. The speed of the boat in still water is 15 mph....
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fall 08 key - a) 1 . 2 b) 8 . c) 2 . 1 25. 2 1 26. Circle,...

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