CTION 5.6 Logarithmic and Exponential Equations 323 In Problems 45-72, solve each exponential equation. Express irrational solutions in exact form. 45. 2-3 = 8 46. 5= 25 47. 2= 10 49. 8 = 1.2 50. 2 = 1.5 48. 3' = 14 51. 5(2) = 8 52. 0.3 (402) = 0.2 53. 31-2 = 4" 54. 2*+1 = 51-20 1-x 55. = 71- 56. = 5* (0.5) 61. 22 + 2" - 12 = 0 - 3 = 0 58. 0.31+* = 1.72r-1 62. 32 + 3* - 2 = 0 66. 9* - 3*+1 + 1 = 0 57. 1.2" = %3D 59. 7- = e* 60. et+3 63. 32 + 3r+1- 4 = 0 65. 16 + 4*+ 69. 3-4* + 4.2" + 8 = 0 64. 22 + 2*+2- 12 = 0 67. 25 - 8 5 = -16 71. 4 - 10.4 = 3 68. 36" - 6.6 = -9 72. 3 - 14.3 = 5 70. 2-49 + 11-7 + 5 = 0 %3D
CTION 5.6 Logarithmic and Exponential Equations 323 In Problems 45-72, solve each exponential equation. Express irrational solutions in exact form. 45. 2-3 = 8 46. 5= 25 47. 2= 10 49. 8 = 1.2 50. 2 = 1.5 48. 3' = 14 51. 5(2) = 8 52. 0.3 (402) = 0.2 53. 31-2 = 4" 54. 2*+1 = 51-20 1-x 55. = 71- 56. = 5* (0.5) 61. 22 + 2" - 12 = 0 - 3 = 0 58. 0.31+* = 1.72r-1 62. 32 + 3* - 2 = 0 66. 9* - 3*+1 + 1 = 0 57. 1.2" = %3D 59. 7- = e* 60. et+3 63. 32 + 3r+1- 4 = 0 65. 16 + 4*+ 69. 3-4* + 4.2" + 8 = 0 64. 22 + 2*+2- 12 = 0 67. 25 - 8 5 = -16 71. 4 - 10.4 = 3 68. 36" - 6.6 = -9 72. 3 - 14.3 = 5 70. 2-49 + 11-7 + 5 = 0 %3D
Big Ideas Math A Bridge To Success Algebra 1: Student Edition 2015
1st Edition
ISBN:9781680331141
Author:HOUGHTON MIFFLIN HARCOURT
Publisher:HOUGHTON MIFFLIN HARCOURT
Chapter6: Exponential Functions And Sequences
Section6.4: Exponential Growth And Decay
Problem 12Q
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