Mathematics, 24.05.2021 19:30 trintrin227

A rock is thrown upward from the ground. Its height in feet above ground after t seconds is given by the function f(t) = –16t2 + 20t. What is the number of seconds it took for the rock to reach its maximum height?

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A rock is thrown upward from the ground. Its height in feet above ground after t seconds is given by the function f(t) = –16t2 + 20t. What is the number of seconds it took for the rock to reach its maximum height? ​

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A rock is thrown upward from the ground. Its height in feet above ground after t seconds is given by the function f(t) = –16t2 + 20t. What is the number of seconds it took for the rock to reach its maximum height?