The number of bacteria after t hours is given by n(t)=250 e^0.15t a) find the initial number of bacteria and the rate of growth or decay. b) find the number of bacteria after 2 days c) how many hours will it take for the number of bacteria to reach 4000? d) how long will it take for the number of bacteria to triple?

a)

b) 334,858 bacteria

c) 4.67 hours

d) 2 hours

Step-by-step explanation:

a) Initial number of bacteria is the coefficient, that is, 250. And the growth rate is the coefficient besides “t”: 0.15. It’s rate of growth because of its positive sign; when it’s negative, it’s taken as rate of decay.

Another way to see that is the following:

Initial number of bacteria is N(0), which implies . And . The process is:

b) After 2 days means . So, we just replace and operate:

c)

d)

answer: what is the conflict?

step-by-step explanation:

*what has happened to new york city?

*what is in the time capsule?

* what did the kidz see that gave them hope?

*what will they do with what they find?

* how will they save the city?

* what challenges will they face along the way?

*what big choice will they make at the climax of the story?

* what lesson do they learn at the end of the story?

um is there supposed to be a picture?