Abacteria culture starts with 100 bacteria and grows to 400 bacteria in 7 hours. assuming the bacteria grows according to an exponential model, find a function y(t) that gives the number of bacteria in the culture after t hours.

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the water is warmed up by the sun and then it evaporates into the atmosphere. the sunlight warms the water by its heat. water is then cooled down and condensation takes place. the water then finally returns back to the earth by the process of precipitation in the form of rain or ice.

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