A bacteria culture starts with 900 bacteria and the population doubles every 4 hours. Find an expression for the number of bacteria after t hours.

Sense there are 900 bacteria and every 4 hours it doubles, you would multiply for by x to get 34 sense that is a composite number, you would then subtract it from 900. Then just do 900-34+t-17. And there ya hav it. Oh! don't forget to right t as an expolentontion. (Delperdination)

Wow check your spellingation.(okaytion?)

135

To find an expression for the number of bacteria after t hours, we need to understand how the population grows over time.

Given that the population doubles every 4 hours, we can use the exponential growth formula:

N(t) = N0 * 2^(t / h)

Where:
- N(t) is the number of bacteria after t hours.
- N0 is the initial number of bacteria.
- t is the time (in hours).
- h is the time it takes for the population to double.

In this case, the initial number of bacteria is 900, and the population doubles every 4 hours. Therefore, h is 4.

Plugging these values into the formula, we get:

N(t) = 900 * 2^(t / 4)

Thus, the expression for the number of bacteria after t hours is: N(t) = 900 * 2^(t / 4).