winter 06 - W0610501 MAT 1050 GROUP FINAL EXAM WINTER 2006...

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W0610501 1 MAT 1050 GROUP FINAL EXAM – WINTER 2006 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 1 1 1 1 5 3 2 6 7 3 2 5 + + + 2. (7 pts.) Simplify completely: 2 3 4 2 3 2 4 5 8 2 x z y z y x 3. (7 pts.) Simplify completely: ( ) ( ) 3 3 3 3 3 3 12 4 4 6 18 9 + + 4. (7 pts.) Simplify completely: ( ) 1 1 1 16 49 5. (6 pts.) Solve: 7 2 3 1 3 3 = x 6. (6 pts.) Solve: 12 5 1 3 4 + x 7. (7 pts.) Ashley invested $10,000 for one year, part at 7% interest and part at 5% interest. If she earned a total interest of $540, how much was invested at each rate? 8. (7 pts.) Solve for q pr q pr p r + = 1 : 9. (6 pts.) Let f be the function given by 5 1 3 2 ) ( 4 = x x f . What is the domain of f ? 10. (6 pts.) Let f be the function given by () x x x f 4 1 2 2 + = . Find and simplify () ( ) 2 2 f f .
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W0610501 2 11. (7 pts.) Let f be the function given by 1 ) ( 2 = x x x f .
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winter 06 - W0610501 MAT 1050 GROUP FINAL EXAM WINTER 2006...

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