27. (a) log3 27

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Chapter2: Graphical And Tabular Analysis
Section2.1: Tables And Trends
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#27 explain please thoroughly
puti sib el r
7. log16x =
8. log25 x =
2
= --
2
9. log, (3x + 1) = 2
11. log (4x - 7) = 2
13. In (2x + 5) = 2.2 (to three decimal places)
14. In (2 – x) = -1.4 (to three decimal places)
10. log, (7 - x) = 3
12. log (1.34 – x) = -1 T
35
20
3
In Problems 15-18, write the equation in logarithmic
form.
15. 2 = 32
1o 16. 53 = 125
1
17. 4-1
4
18. 91/2 = 3
In Problems 19 and 20, write the equation in logarithmic
form and solve for x.
19. e3*+5 = 0.55 (to three decimal places) ora
20. 102*+1
loa
= 0.25 (to three decimal places) lol ad rd
In Problems 21-26, graph each function.
21. y= log3 x
23. y = In x
25. y = log2 (-x)
22. y = log4 x
24. y = log, x
26. y = ln (-x)
sloin
In Problems 27 and 28, use properties of logarithms or a
definition to simplify each expression. Check each result
with a change-of-base formula.
()
27. (a) log3 27
(b) logs
Transcribed Image Text:puti sib el r 7. log16x = 8. log25 x = 2 = -- 2 9. log, (3x + 1) = 2 11. log (4x - 7) = 2 13. In (2x + 5) = 2.2 (to three decimal places) 14. In (2 – x) = -1.4 (to three decimal places) 10. log, (7 - x) = 3 12. log (1.34 – x) = -1 T 35 20 3 In Problems 15-18, write the equation in logarithmic form. 15. 2 = 32 1o 16. 53 = 125 1 17. 4-1 4 18. 91/2 = 3 In Problems 19 and 20, write the equation in logarithmic form and solve for x. 19. e3*+5 = 0.55 (to three decimal places) ora 20. 102*+1 loa = 0.25 (to three decimal places) lol ad rd In Problems 21-26, graph each function. 21. y= log3 x 23. y = In x 25. y = log2 (-x) 22. y = log4 x 24. y = log, x 26. y = ln (-x) sloin In Problems 27 and 28, use properties of logarithms or a definition to simplify each expression. Check each result with a change-of-base formula. () 27. (a) log3 27 (b) logs
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