This question refers to the population growth problem in section 3.9 of the lecture notes. Suppose that bacteria growth is modelled by the DE given in the notes. Suppose that the number of bacteria is observed to double after 10 days, and the estimated carrying capacity is 11 times the initial population. What is the estimated population, as a multiple of the initial population, after 21 days? (For example an answer of 3.5 would indicate a population 3.5 times the initial population). Give the answer accurate to 2 decimal places. 数字

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