370 likes | 533 Views
Trashketball Review. Chapter 3 Exponents and Logarithms. Trashketball Review of ch 4. 1. 26. 6. 21. 11. 16. 31. 27. 22. 2. 32. 17. 12. 7. 28. 23. 13. 18. 8. 33. 3. 29. 24. 19. 14. 34. 9. 4. 30. 25. 15. 20. 35. 5. 10. 1. Solve. 5 2x = 5 9x + 7.
E N D
Trashketball Review Chapter 3 Exponents and Logarithms
TrashketballReview of ch 4 1 26 6 21 11 16 31 27 22 2 32 17 12 7 28 23 13 18 8 33 3 29 24 19 14 34 9 4 30 25 15 20 35 5 10
1 Solve. 52x = 59x + 7 x = -1
2 Solve. x = -2, 5
3 Solve. x = 1 6
4 Solve. 27x = 800 x = 1.378
5 Solve. logx 512 = 3 x = 8
6 Solve. log8 (3x - 6) = log8 (9x + 23)
7 Solve. log7 (x2 - 5) = log7 (59)
8 Solve. log9(x + 3) = log92x x = 3
9 Solve. Round to 4 decimal places. 3x = 72 x = 3.8928
10 Solve. Round to 4 decimal places. 7x = 23.4 x = 1.6202
11 Solve. Round to 4 decimal places. 53x = 37 x = 0.7479
12 Write in logarithmic form. 82 = 64 log8 64 = 2
13 Write in logarithmic form. 93 = 729 log9 729 = 3
14 Solve for x. log x = -2 10-2 = x 0.01 = x
15 Solve for x. logx 4 = 12 x = 1.122
16 Write in exponential form.
17 Write in exponential form. log11 1331 = 3 113 = 1331
18 Solve for x. 42x = 5x - 1 x = -1.38
19 Solve for x. 42x - 5 · 4x - 14 = 0 x = 1.404
20 Evaluate -4
21 Evaluate 2
22 Evaluate 4
23 Expand log3 (27x)2 2(log3 27 + log3 x) = 2log327 + 2log3x
24 Expand log x – log 9
25 Express as single logarithm
26 Express as single logarithm
27 Evaluate. Round to 4 decimal places. log11 52 1.6478
28 Evaluate. Round to 4 decimal places. log5 8.7 1.3441
29 Evaluate. Round to 4 decimal places. log6 21.7 1.7175
30 Evaluate. Round to 4 decimal places. log13 28.3 1.3033
31 Solve log(x+3) = 1 – log(x) X = 2
32 Solve log(x+45) – log(x+5) = log x X = 5
33 If you invest some money at a 5.5% rate compounded continuously, how long will it take to double? 12.6 years
34 You invest $1500 at a 4.9% interest rate compounded quarterly. How much will you have in 3 years? $1735.98
35 A certain city has a population of 4000 people in 1990 and 4500 people in 2000. Find an exponential function to model this population. Then predict the population in 2015. y = 4000e.0118t 13018 people