# Algebra and Trigonometry (3rd Edition) by Cynthia Young

By Cynthia Young

The 3rd variation of Cynthia Young’s Algebra & Trigonometry brings jointly the entire components that experience allowed teachers and inexperienced persons to effectively “bridge the gap” among school room guideline and self sufficient homework by means of overcoming universal studying obstacles and construction self assurance in students’ skill to do arithmetic. Written in a transparent, unmarried voice that speaks to scholars and mirrors how teachers speak in lecture, Young’s hallmark pedagogy permits scholars to develop into self reliant, profitable newbies. diverse workout forms and modeling tasks continue the training clean and motivating. during this variation, younger maintains her culture of fostering a love for succeeding in arithmetic through introducing inquiry-based studying initiatives, supplying newbies a chance to grasp the fabric with extra freedom whereas reinforcing mathematical abilities and instinct.

The seamless integration of Cynthia Young’s Algebra & Trigonometry third variation with WileyPLUS, a research-based, on-line setting for potent educating and studying, keeps Young’s imaginative and prescient of establishing scholar self belief in arithmetic since it takes the guesswork out of learning by means of delivering them with a transparent roadmap: what to do, the way to do it, and whether or not they did it correct.

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Extra info for Algebra and Trigonometry (3rd Edition)

Sample text

8 # 2Ϫ3 # 5 3. (Ϫ3)5 8. Ϫ32 # 5 13. 8Ϫ2 18. 5 # 2Ϫ4 # 32 4. (Ϫ4)2 9. 90 14. 3Ϫ4 19. Ϫ6 # 3Ϫ2 # 81 5. Ϫ52 10. Ϫ8x0 15. Ϫ6 # 52 20. qxd 8/7/12 26 5:34 PM Page 26 C H A P T E R 0 Prerequisites and Review In Exercises 21–50, simplify and write the resulting expression with only positive exponents. 21. x2 # x3 22. y3 # y5 23. x2 xϪ3 24. y3 # yϪ7 25. (x2 ) 26. (y3)2 27. (4a)3 28. (4x2) 29. (Ϫ2t)3 30. (Ϫ3b)4 31. (5xy2) (3x3y) 3 33. x5 y3 34. 7 xy b -4 37. a b 2 41. 2 45. 42. y5 x2 35. -2 -5 y x (2xy)2 (- 2xy) Ϫ2 y-4 x5 46.

9 ϫ 105 65. 1 ϫ 10Ϫ5 66. 0 * 10 cell phones being used worldwide. Assume that the average cell phone measures 5 inches in length and there are 5280 feet in a mile. 9 67. Cell Phones Spanning the Earth. a. If all of the cell phones currently in use were to be lined up next to each other tip to tip, how many feet would the line of cell phones span? Write the answer in scientiﬁc notation. b. The circumference of the Earth (measured at the equator) is approximately 25,000 miles. If the cell phones in part (a) were to be wrapped around the Earth at the equator, would they circle the Earth completely?

234492 10. 2549 11. 9949 12. 9951 14. 327491 15. 238473 16. qxd 16 8/7/12 5:34 PM Page 16 C H A P T E R 0 Prerequisites and Review In Exercises 17–40, perform the indicated operations in the correct order. 17. 5 ϩ 2 # 3 Ϫ 7 21. 2 Ϫ 3[4(2 # 3 ϩ 5)] 18. 2 ϩ 5 # 4 ϩ 3 # 6 22. 4 # 6(5 Ϫ 9) 19. 2 # (5 ϩ 7 # 4 Ϫ 20) 20. Ϫ3 # (2 ϩ 7) ϩ 8 # (7 Ϫ 2 # 1) 23. 8 Ϫ (Ϫ2) ϩ 7 24. Ϫ10 Ϫ (Ϫ9) 28. Ϫa ϩ b Ϫ(Ϫc) 25. Ϫ3 Ϫ (Ϫ6) 26. Ϫ5 ϩ 2 Ϫ (Ϫ3) 27. x Ϫ (Ϫy) Ϫ z 29. Ϫ(3x ϩ y) 30. Ϫ(4a Ϫ 2b) 31. 33. Ϫ4 Ϫ6 [(5 Ϫ 8)(4)] 34.