Question
An algae bloom in a lake is a sudden growth of algae that consumes nutrients and blocks sunlight, killing other life in the water. Suppose
An algae bloom in a lake is a sudden growth of algae that consumes nutrients and blocks sunlight, killing other life in the water. Suppose that the number of tons y(t) of algae after t weeks satisfies the following.
y' = ty + t
y(0) = 2
(a) Solve this differential equation and initial condition.
y(t)=
(b) Use your solution to find the amount of algae after 2 weeks. (Round your answer to the nearest ton.)
_____________tons
(c) Graph the solution on a graphing calculator and find when the algae bloom will reach 40 tons. (Round your answer to one decimal place.)
______________week
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