#10

This test: 20 pcintls) possible This question: 1 Submit test pomt(s_) looselble Test: Final examv2 Question 10 of 20 The concentration of bacteria in a sample can be modeled by B(t) = BO e H, where t is in hours and B is the concentration in billions of bacteria per liter. (a) If the concentration increases by 20% in 4 hours, nd k. (b) If BO =1.4, find B after 8.1 hours. (o) By what percentage does the concentration increase each hour? E) (a) k = E (Type an integer or decimal rounded to four decimal places as needed.) (b) After 8.1 hours, B is about |:| billion bacteria per liter. [Use the answer from part a to find this answer. Type an integer or decimal rounded to two decimal places as needed.) [0) The concentration increases by |:|% each hour. [Use the answer from part a to find this answer. Type an integer or decimal rounded to three decimal places as needed.)