Exam 3 Review Sheet - Math 096 Exam 3 Study Guide 1 The...

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Unformatted text preview: Math 096 Exam 3 Study Guide 1. The exam covers Sections 10.6-10.7 and 11.1-11.4. The exam will be closed book and closed notes. You can use your calculator. ' 2. Practice doing problems without using the book or your notes. I will only test you on ideas we have covered in class or on your homework. 3. Review the topics and do the problems listed below. if a certain problem type is difficult for you, do some other problems like it in the book for more practice. 4. Do not wait until the night before the exam to begin studying. Make sure to show all your work. 6. Do not skip an exam. Check my syllabus for exam policy. U1 For problems 1-3, solve: 2_ V—le—1+3x=0 3. VX+9=X+3 For problems 4 and 5, find the length of the unknown side of each right triangle: 4. lift 3ft 7m 3m 6. Draw a diagram to represent the following situation and then solve: A ladder is placed against the side of a house 8 feet high, and the base of the ladder is 7 feet from the house. Rounded to the nearest tenth, how long is the ladder? For problems 7—10, multiply: 7. '2i * — 11i s. 5i(4 - 7i) 9. (J3 — SiIJE +5i) 10. (6 - 3i)2 11. Simplify E49 For problem 12-17, solve each problem. Remember, if it can be factored, that is the easiest method, if not use the Abidbz —4ac quadratic formula: x = 23 . You will need to know how to do ALL THREE METHODS for the exam! 12. x2+5x-6=O 1 2 1—0 13. 2x=5x2-3 15. 3x —x_ _ 2 14.x+7x+4=0 16.10x2+10x+3=0 —x +x=— 17. 8 2 Solve the inequalities. Write the solution using interval notation. 18. xz—Zx-15<0 19. (x—8)(x—5)(x—1)20 20.51520 X—4 Solutions 1. x = 42 PPHFWPPW.” I.) O Ch —+. ('D I'D u-g- HH 3“?) N c...‘ I U.) 9 E—‘H wN xx llll II oucn "Ia..."- .5-“|-* [—‘L H P X H 15. 1iJ§ 16. 10 17. X = --10, 2 18. (“3.5) 19. [1,5] U[8,oo) 20. (—00,—5] UGLOO) ...
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