Plot[{0.0198117 + 0.00826611 x + 0.0521381 x^2 - 0.00210184 x^3, -0.181324 + 1.09073 x - 1.77627 x^2 + 0.920407 x^3, -0.0335189 + 0.265863 x - 0.359457 x^2 + 0.147228 x^3}, {x, 0, 1.0333}]