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# winter 10 - W1010501 MAT 1050 GROUP FINAL EXAM WINTER 2010...

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W1010501 1 MAT 1050 GROUP FINAL EXAM – WINTER 2010 SHOW ALL WORK. DO NOT USE A CALCULATOR. 1. (7 pts.) Simplify by adding (or subtracting) like terms wherever possible: 1 2 1 4 3 1 12 2 4 1 8 1 4 1 + + + + + x x x x x x π 2. (7 pts.) Simplify completely: 3 2 3 7 3 0 1 3 7 4 5 24 3 z y x z xy z y x 3. (7 pts.) Multiply and simplify completely: ( ) 2 28 63 + 4. (7 pts.) Simplify completely: 6 1 3 1 3 1 64 64 64 5. (6 pts.) Solve: 5 4 3 2 2 > + + x 6. (6 pts.) Solve: 5 5 = + x x 7. (7 pts.) In the year 2009, Baltimore had one-half the snowfall of Washington, D. C. and Philadelphia had 11 inches more than one-third the snowfall of Washington, D. C. If the total snowfall in the three cities combined was 77 inches, what was the snowfall in each of the cities? 8. (7 pts.) Solve for 3 7 2 : = + + ab b a a a 9. (6 pts.) Let g be the function given by 3 2 9 9 3 ) ( + = t t t g . What is the domain of g ? 10. (6 pts.) Let f be the function given by x x x f = 1 2 ) ( 2 .

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