https://www.webassign.net/web/Stu 300(3) 1/2 The number of bacteria in a certain culture increased from 300 to 900 between 7:00 A.M. and 9:00 A.M. Assuming growth is exponential, the number f(t) of bacteria t hours after 7:00 A.M. is given by f(t) = 8:00 A.M. (a) Estimate the number of bacteria in the culture at 8:00 A.M., 10:00 A.M., and 11:00 A.M. (Round your answers to the nearest whole number.) bacteria 10:00 A.M. bacteria 11:00 A.M. bacteria (b) Sketch the graph of f for 0 S t s 4. O O f(t) (bacteria) f(t) (bacteria) 2500 2500 2000 2000 1500 1500 1000 1000 500 500 t (hours) 2 3 + t (hours) 4 i Ci O O f(t) (bacteria) f(t) (bacteria) 1000 20 000 800 15 000 600 10 000 400 500 200 t (hours) LLLL t (hours) 3 4 Ci 8:15 X W 60OF Mostly cloudy 11/2/2 Type here to search O 24 P