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Explore the rules of exponents in multiplication and solve exercises for a deeper understanding in Algebra 1 lessons.
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25 58 y3 x 240m3 r Multiplication Properties of Exponents ALGEBRA 1 LESSON 8-3 pages 407–410 Exercises 1. 210 2. 3. 1 4. (0.99)3 5. 69 6. 1 7. c5 8. 3r5 9. 10t –7 10. 56x 6 11. 3x4 22. 6 105 23. 6 109 24. 4 103 25. 3.4 10–5 26. 5.6 10–7 27. 1.5 1022 28. about 2.5578 1013 mi 29. 1.08 1021 dollars 30. about 3.84 105 km 31. 9 12. –4.8n3 13.b3 14. –7 15. –45a4 16. 17. 45x 7y 6 18. 12a6c8 19.x10y2 20.a8b 21. – 8-3
Multiplication Properties of Exponents ALGEBRA 1 LESSON 8-3 32. –4 33. –3 34. 11 35. –5 36. 5 37. –4 38. 0 39. 2, –3 40. 6x3 + 2x2 41. 4x4 42. 4y5 + 8y2 43. 4c4 44. –6x6 45. 12a7 46.x10 47. 34 • 22 48. 2.7 10–8 49. 8.0 105 50. 2.1 10–5 51. 1.2 10–4 52. 8.0 10–8 53. 1.5 108 54. about 1.01 g 55.a.y1y7; y2y6; y3y5; y4y4 b. Answers may vary. Sample: y–1y9; y–2y10; y–3y11; y–4y12 c. An infinite number; there are an infinite number of integer pairs with a sum of 8. 56.a. about 10–7 m b. Longer; 1 < 4 < 7 so 1 10–7 < 4 10–7 < 7 10–7. 57. Answers may vary. Sample: The property of multiplying powers only applies when 2 terms have the same base. 8-3
1 a + b 1 a Multiplication Properties of Exponents ALGEBRA 1 LESSON 8-3 69. 8m5 + 56m3 70. –8x5 + 36x4 71. 81 72. 22n+3 73. 2x+y • 3x+2 74. 75. (t + 3)2 76. 25 77.a. 1.833 10–9 km3 b. 1.833 m3 78. 700 times 79. D 80. F 81. A 82. B 83.[2] 365 4.7 107 = 1715.5 107 = 1.7155 1010: about 1.7 1010 diapers [1] no work shown OR answer not written in scientific notation 58. about 5.85 103 m 59. 7.65 1014 60. 4.0392 108 61. 7.039305 10–7 62. 1.7882786 10–12 63. about 6.7 1033 molecules 64. 1.428 1033 molecules 65.x3 66. 67. 5c3 68. 6a3 + 10a2 8-3
Multiplication Properties of Exponents ALGEBRA 1 LESSON 8-3 95. 96. 18; 34; 46 97. –1; 7; 13 98. 4; –12; –24 99. –6.8; –22.8; –34.8 89. 876,000,000 90. 0.001052 91. 910,000,000,000 92. 0.00029 93. 94. 84.[4] a. 4r 2 b. 4(5)2 = 4 25 = 100 in.2 c. 144 = 4r 2, 36 = r 2 so r = 6, d = 2r = 12, 12 in. [3] radius found in (c) but not the diameter [2] only two questions answered correctly [1] only one question answered correctly 85. 1.28 106 86. 3.5 10–3 87. 9.0 10–5 88. 6.2 106 8-3