
Calvin S.
asked 03/12/21the height of the arrow shot into the air can be represented by the equation h = -16t^2 + 112t + 5 what is the maximum height of the arrow?
use the quadratic formula
2 Answers By Expert Tutors

Bradford T. answered 03/12/21
Retired Engineer / Upper level math instructor
Using the quadratic equation to solve for t
t = (-112 ±√(1122-4(-16)5))/-32 = 7.044, -.044
For a parabola, the t value for the vertex is halfway between the points.
(7.044+(-0.044))/2 = 3.5
h(3.5) = 201
The maximum height is 201 ft.

Kevin C. answered 03/12/21
Highly Educated High School Math Teacher with Experience in STEM
When graphed, the vertex of this parabola is (3.5, 201) where 201 represents the maximum height.
Therefore, the solution is 201
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Kevin C.
Not sure the quadratic formula would be helpful to find the maximum for this. You'd want to find the vertex of the parabola to find its maximum.03/12/21