Question

How long will it take for the population to reach 1290 ?
A bacteria culture starts with 160 bacteria and grows at a rate proportional to its size. After 4 hours there will be 640 bacteria.

Answer 1

1290=160^(in2/2)(5)

Answer 2

1290=160^(In2/2)(x)

Answer 3

and solve for x?

Answer 4

@Mertsj

Answer 5

I'm not sure what that "rate proportional to its size" means.

Answer 6

,
bacteria culture starts with 160 bacteria and grows at a rate proportional to its size. After 4 hours there will be 640 bacteria.
(a) Express the population after t hours as a function of t

this was the first question nd i got
y(t)=160e^(In2/2)(t)

Answer 7

Find r by using After 4 hours there will be 640 bacteria.