Determine time of day when pollution is at its highest level

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Reference no: EM131563811

Question: AIR POLLUTION The amount of nitrogen dioxide, a brown gas that impairs breathing, present in the atmosphere on a certain May day in the city of Long Beach is approximated by

A(t) = 136/{(1 + 0.25(t - 4.5)2) + 28           (0 ≤ t ≤ 11)

Where A(t) is measured in pollutant standard index (PSI) and t is measured in hours, with t = 0 corresponding to 7 a.m. Determine the time of day when the pollution is at its highest level.

Reference no: EM131563811

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