The Amount of Nitrogen Dioxide, a Brown Gas That Impairs

question 31

Short Answer

The amount of nitrogen dioxide, a brown gas that impairs breathing, present in the atmosphere on a certain May day in a city has been approximated by ​ ​
Where A(t) is measured in pollutant standard index (PSI), and ​t is measured in hours, with t=0 corresponding to 4 A.M . Use the trapezoidal rule with n = 0 to estimate the average PSI between 4 A.M. and noon. Please round the answer to the nearest hundredth.
(Hint: .) __________ nitrogen dioxides

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