16. [-/1 Points] DETAILS LARPCALC11 3.4.050. MY NOTES AS Solve the logarithmic equation algebraically. Approximate the result to three decimal places. (If there is no solution, enter NO SOLUTION.) 2 + 7 In(x) = 6 X = Need Help? Read It Watch It 17. [-/1 Points] DETAILS LARPCALC11 3.4.051. MY NOTES AS Solve the logarithmic equation algebraically. Approximate the result to three decimal places. (If there is no solution, enter NO SOLUTION.) 7 log, (0.9x) = 13 X = Need Help? Read It 18. [-/1 Points] DETAILS LARPCALC11 3.4.054.MI. MY NOTES AS Solve the logarithmic equation algebraically. Approximate the result to three decimal places. (If there is no solution, enter NO SOLUTION.) In (x + 3) - In(x - 3) = In(x) Need Help? Read It Watch It Master It19. [-/1 Points] DETAILS LARPCALC11 3.4.055. MY NOTES ASK Y Solve the logarithmic equation algebraically. Approximate the result to three decimal places. (If there is no solution, enter NO SOLUTION.) log(4x + 5) = log(x - 8) X = Need Help? Read It Watch It 20. [-/1 Points] DETAILS LARPCALC11 3.4.057. MY NOTES ASK Solve the logarithmic equation algebraically. Approximate the result to three decimal places. (If there is no solution, enter NO SOLUTION.) log4 X - 1094(X - 8) = _ 2 X = Need Help? Read It 21. [-/2 Points] DETAILS LARPCALC11 3.4.067.MI. MY NOTES ASK $1000 is invested in an account at interest rate r = 0.045, compounded continuously. (Round your answers to two decimal places. ) (a) Find the time required for the amount to double. years (b) Find the time required for the amount to triple. years Need Help? Read It Master It22. [-I2 Points] DETAILS LARPCALC11 3.4.068. MY NOTES ASK YOUR TEACHER l PRACTIC You invest $1500 in an account at interest rate r, compounded continuously. Find the time required for the amount to double and triple. (Round your answers to two decimal places.) r = 0.0265 (a) double yr (b) triple yr Need Help? ,, \"a 7 . 23. [/1 Points] DETAILS LARPCALC11 3.4.079. MY NOTES ASK YOUR TEACHER l PRACTIC The number N of beavers in a given area after t years can be approximated by the following. N = 5.5(100'23'), o s t s 9 Use the model to approximate how many years it will take for the beaver population to reach 85. (Round your answer to the nearest year.) t = years Need Help? _ 24. [I1 Points] DETAILS LARPCALC11 3.4.082. | MY NOTES The population P (in thousands) of Montana in the years 2009 through 2019 can be modeled by P = 116 |n(t) + 720, 9 s t s 19 where t represents the year, with t = 9 corresponding to 2009.+ During which year did the population of Montana exceed 986 thousand