A long straight river, 36 meters wide, is flowing at 1 meter per second. A pollutant is entering the river at a constant rate from one of its banks. As the pollutant disperses in the water, it forms a plume that is modeled by the equation . How wide is the plume 36 meters down river from the source of the pollution?
A) meters
B) meters
C) meters
D) meters
E) meters
Correct Answer:
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