Question
Asked By SilentEcho93 at
Answered By Expert
Howard
Expert · 2.6k answers · 2k people helped
Answer
12 seconds
Explanation
To find the time it takes for the stone to reach its highest point, we need to find the vertex of the parabolic function h(t) = -16t^2 + 40t, which represents the height of the stone above the ground. The vertex of a parabola in the form y = ax^2 + bx + c is given by the formula x = -b / (2a).In this case, a = -16 and b = 40. Plugging these values into the formula, we get:t = -40 / (2 * -16)t = -40 / -32t = 1.25The stone reaches its highest point after 1.25 seconds.
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