10) Solve for x a) log x =- 1 c) In(x + x) - In(12) = 0 b) In(x + 6) - In(x + 2) = In4 d) log (x - 1) =- 1 Section 2- Calculator Allowed 11) Solve: a) 2x = 37* b) 11 = 5 - 2x+ 3c) 6e pax = 72 e) logx + log (x - 21) = 2 d) 4 3 ) = 64 f) log(3x + 2) + log(x - 1) = 1 g) 6-= 34x-1 12) The spread of the flu virus through a certain population is modeled by y =- 1000 1+990e -0.7t , Where y is the total number infected after t days. In how many days will 350 people be infected with the virus? 13) The growth of a population follows the model P = 3000 1+1le -0.2345x Where t is in months. Estimate the population after 5 months (round to nearest integer) 14) Three hours after bacteria were introduced into a culture, the population was 150. 6 hours after that the population was 541. What will the population be 30 hours after the start of the experiment? 15) Solve by graphing in the graphing calculator (use intersect feature) a) Inx = (x - 1) b) In x = Vx+ 2 - 3