Mathematics, 19.07.2019 11:30, masaiyahrhemanow

One direction's percent of relevancy for 0 ≤ t ≤ 80 can be roughly modeled by the function p given by $p\left(t\right)=-\left(5-\frac{t}{5 }\right)^2\left(1-\frac{t}{50}\righ t)^2+75$ where p(t) is a percent and t is measured in months after od's debut. at approximately what time(s) t in the interval 0 ≤ t ≤ 80 does their career reach a maximum in relevancy? use a graphic calculator to solve this problem.

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One direction's percent of relevancy for 0 ≤ t ≤ 80 can be roughly modeled by the function p given b...