Question

The opening course of the Dog Olympics involves the dogs running over a parabolic

Answer 1

Answer:

x=13 feet

Step-by-step explanation:

A ramp is between 1.96 and 1.80 feet, we will take 1.96

$If R(x) =-0.05x+0.8x$ and R(x)=1.96 feet: we apply quadratic formula; $\frac{-b+-\sqrt{b^{2} -4ac} }{2a}$, where a=-0.05, b=0.8 and c=-1.96, so

$\frac{-0.8+-\sqrt{0.8^{2}-4*(-0.05)*(-1.96) } }{2*(-0.05)},$ solving $x_{1}=13 ; x_{2} = 3,02$; we take the highest value of x, x=13