please help
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The table shows the predicted growth of a particular bacterium after various numbers of hours. Write an explicit formula for the sequence of the number of bacterium

Question

please help
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The table shows the predicted growth of a particular bacterium after various numbers of hours. Write an explicit formula for the sequence of the number of bacterium

anonymous · Answer

attachment

anonymous · Answer

an = 21n

anonymous · Answer

It is doubling every 2 hours
n/22 = 2^t/2 where n = number of bacteria, t = time in hours

t = 4
 n = 22(2)^2 = 88 etc.

anonymous · Answer

Yes...I'm wrong. This is not exponential growth, but simply 
n = 22 t. Sorry. In real life however, growth is by splitting and thus doubling and is usually exponential.