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Quiz Review 8.1-8.4 Name __________________________________ Simplify the expression. Write your answer using exponents. Circle your final answers. 1. (– 4)7 • (– 4)3 2. (– 10)5 • (– 10)2 6. (48 • 27)6 5. [(– 4)5]9 3. 82 • 84 • 8 4. (152)4 7. (135 • 8)5 Simplify the expression. Circle your final answers. 8. a10 • a2 • a6 12. (2ab)5 9. (z5)5 13. (2x3y)6 10. [(b + 1)2]3 11. (–3x)4 14. (3m7)4 • m3 15. 4p2 • (3p5)2 Simplify the expression. Write your answer using exponents. Circle your final answer. 14 5 125 12 3 6 ( 5) 7 3 16. 8 17. 18. 19. 6 124 4 ( 5) 2 F I G HJ K 20. ( 1 ) 6 5 1 15 24. y9 . y 25. 22. a I F G H2b JK 3 5 1I F G H4 JK 4 5 21. 38 1 31 4 3 x 4 5 26. 6 4 y 13 23. 2m I F G H3n JK 5 5 9 3 x7 4 27. 2 y12 Evaluate the expression. Write your answer using only positive exponents. Circle your final answer. 28. 3 –5 5 –2 32. 8 29. 5 30. 3 7 7 3 33. 4 34. 0–5 0 0 31. 4 0 3 35. 10–2 10–3 Simplify the expression. Write your answer using only positive exponents. Circle your final answer. 36. x–7 37. 2y–2 40. a2b–4 41. 3x–2y–5 c 44. d x 45. y 38. (2b)–5 42. (4x–4y2)–3 x 46. 4y Write the number in scientific notation. 48. 415,620 49. 0.08104 50. 3,412,000 Write the number in standard form. 51. 8.1045 105 52. 1.012 102 53. 1.211 3 10–2 39. (–3m)–4 43. (8mn3)0 1 47. 3x–3y–7 54. 7.00135 10–5 Order the numbers from least to greatest. 55. 1.2 10–5; 0.001023; 1.045 10–3; 0.01036 Evaluate the expression. Write your answer in scientific notation. 56. (6 108)(5 10–2) 57. 4.510–5 58. (2 10–5)5 910–2 59. Oregon has an area of approximately 2.52 105 square kilometers. In 2000, the population of Oregon was approximately 3.42 106 people. How many people were there per square kilometer in Oregon in 2000?