winter 08 - W0810501 MAT 1050 GROUP FINAL EXAM WINTER 2008...

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W0810501 1 MAT 1050 GROUP FINAL EXAM – WINTER 2008 SHOW ALL WORK. DO NOT USE A CALCULATOR. 1. (7 pts.) Simplify by adding (or subtracting) like terms wherever possible: x x x x x x 5 7 5 2 2 2 + + + + π 2. (7 pts.) Simplify completely: () z y x z y y x 5 2 4 0 4 2 4 2 3. (7 pts.) Simplify completely: ( ) ( ) 3 4 2 3 3 2 2 + 4. (7 pts.) Simplify completely: 2 2 1 2 3 4 4 5. (6 pts.) Solve: x x 3 5 2 3 = 6. (6 pts.) Solve: 7 2 1 2 5 + x 7. (7 pts.) Solution A is 50% alcohol. Solution B is 20% alcohol. We want to create a 20 liter mixture of the two solutions that will be 32% alcohol. How many liters of each solution should be used? 8. (7 pts.) Solve for n m m n 1 1 1 2 : + = 9. (6 pts.) Let f be the function given by 3 4 1 ) ( 2 + + = x x x x f . What is the domain of f ? 10. (6 pts.) Let g be the function given by 9 5 ) ( 2 + = x x x g . Find and simplify () ( ) [] . 1 0 2 g g + 11. (7 pts.) Let f be the function given by 1 ) ( 2 + + = x x x f .
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winter 08 - W0810501 MAT 1050 GROUP FINAL EXAM WINTER 2008...

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