Question: Suppose that in an election year the proportion p of voters who recognize a certain candidate's name t months after the campaign started is given

Suppose that in an election year the proportion p of voters who recognize a certain candidate's name t months after the campaign started is given by

7.2t p(t): + 0.2 t² + 36

After how many months is the proportion maximized?

7.2t p(t): + 0.2 t + 36

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