Question

a population of amoebas in a petri dish will triple in size every hour .at the start of an experiment the population is =800x^3 where x is the number of hours models the population growth how amoebas are in the perri dish after 9 hours

Answer 1

From the given information, we know that the expression that models the population of amoebas with respect to time is:

`P=8x^3`

Where x is the number of hours. by replacing 9 for x, we can find the population after 9 hours, like this:

`\begin{gathered} P=8*9^3 \\ P=8*729 \\ P=5832 \end{gathered}`

Then, the population of amoebas after 9 hours is 5832.