I have a homework question and I don't know how to get the answer at the back of the textbook.
"The fish population, in thousands, in a lake at time t, in years, is modelled by
the following function: p(t) = {3+1/12t^2 if 0 <_ t <6, 2+1/18t^2 if 6 < t <_12.
There is a sudden change in population at time t = 6. *I already solve for "a"
b.) Determine how many fish were killed by the spill? answer is 2000
c.) At what time did the population recover to the level it was at before the spill? answer is 8.49 years
"The fish population, in thousands, in a lake at time t, in years, is modelled by
the following function: p(t) = {3+1/12t^2 if 0 <_ t <6, 2+1/18t^2 if 6 < t <_12.
There is a sudden change in population at time t = 6. *I already solve for "a"
b.) Determine how many fish were killed by the spill? answer is 2000
c.) At what time did the population recover to the level it was at before the spill? answer is 8.49 years