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# fall 09 - F0910501 MAT 1050 GROUP FINAL EXAM FALL 2009 SHOW...

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F0910501 1 MAT 1050 GROUP FINAL EXAM – FALL 2009 SHOW ALL WORK. DO NOT USE A CALCULATOR. 1. (7 pts.) Simplify by adding (or subtracting) like terms wherever possible: 2 5 2 1 2 2 3 2 2 1 3 3 7 5 y y y y y y + + + 2. (7 pts.) Simplify completely: 4 5 4 4 2 4 0 3 5 2 32 n m p m p n m 3. (7 pts.) Multiply and simplify completely: ( ) 2 20 45 + 4. (7 pts.) Simplify completely: 2 2 1 2 1 2 1 4 4 4 + 5. (6 pts.) Solve: 5 8 1 4 3 = + + x 6. (6 pts.) Solve: 2 3 2 6 x 7. (7 pts.) I have \$9.45 in quarters and dimes in my pocket. The number of dimes is 18 less than twice the number of quarters. How many of each do I have in my pocket? 8. (7 pts.) Solve for z y x y 1 1 1 : + = 9. (6 pts.) Let f be the function given by 4 2 1 ) ( + = x x x f . What is the domain of f ? 10. (6 pts.) Let g be the function given by 3 2 7 2 ) ( + = x x x g . Find and simplify ( ) ( ) [ ] 3 3 10 2 g g .

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