Mathematics, 11.03.2020 21:45 jitosfc916
A swimmer takes a running jump off a pier. The path of the swimmer can be modeled by the equation h=-0.1d^2+0.1d+3, where h is the height (in feet) and d is the horizontal distance (in feet). How far from the pier does the swimmer enter the water?
Answers: 2
![-0.1d^2+0.1d+3=0\\ \\-d^2+d+30=0\ \ [\text{Multiply by 10}]\\ \\d^2-d-30=0\ \ [\text{Multiply by -1}]\\ \\d^2-6d+5d-30=0\\ \\d(d-6)+5(d-6)=0\\ \\(d-6)(d+5)=0\\ \\d-6=0\ \text{or}\ d+5=0\\ \\d=6\ \text{or}\ d=-5](/tpl/images/0543/3308/86a55.png)
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A swimmer takes a running jump off a pier. The path of the swimmer can be modeled by the equation h=...
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