Answer :

Answer:

Step-by-step explanation:To find the number of bacteria after 2 hours, we can use the formula for exponential growth:

Nt=N0×(1+r)t

Where:

   Nt= the final number of bacteria after time tt

   N0​ = the initial number of bacteria

   r = the growth rate (expressed as a decimal)

   t = the time in hours

Given:

   N0=4×106 (initial number of bacteria)

   r=10%=0.10 (growth rate per hour)

   t=2t=2 hours

Substitute these values into the formula:

Nt=4×10^6×(1+0.10)^2

Nt​=4×10^6×1.21

Nt=4.84×10^6

So, after 2 hours, the number of bacteria will be 4.84×10^6.

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