fall 08 - F0810501 MAT 1050 GROUP FINAL EXAM FALL 2008 SHOW...

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F0810501 1 MAT 1050 GROUP FINAL EXAM – FALL 2008 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 2 11 3 y y y y y y + + + 2. (7 pts.) Simplify completely: () 2 2 0 3 2 3 4 3 z y x xz yz x 3. (7 pts.) Multiply and simplify completely: ( ) ( ) 5 3 3 2 5 3 3 + 4. (7 pts.) Simplify completely: 2 2 1 2 1 2 1 2 1 49 25 49 25 + 5. (6 pts.) Let 3 4 ) ( + = x x f . Find all inputs, x, such that 2 ) ( < x f . 6. (6 pts.) Solve: 3 7 5 2 3 + x 7. (7 pts.) At 1:00 PM, a train leaves a station travelling due east at a constant speed. One hour later, a second train leaves the same station, travelling due west, at a speed that is 16 mph more than the first train. At 5:00 PM, the two trains are 384 mile apart. Find the speed of each train. 8.
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fall 08 - F0810501 MAT 1050 GROUP FINAL EXAM FALL 2008 SHOW...

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