Answer:
go to khan academy
Step-by-step explanation:
1) n(6;1;-1)=n(A;B;C), point A(2;9;4)=A(x₀;y₀;z₀);
2) common view for a plane according the conditions is: A(x-x₀)+B(y-y₀)+C(z-z₀)=0;
3) after substituted coordinates: 6(x-2)+(y-9)-(z-4)=0; ⇒ 6x+y-z-17=0.
Based on the knowledge of a simple quadratic equation (2nd degree), it can have 2 solutions, with one turning point. Following that pattern, we can say that a 6th degree polynomial function has 5 turning points. However, it doesn't have to have 5 turning points, so the correct answer would be "5 or less".
I think it would take Company B 15hrs to clear the land, and Company A would take 18hrs.
Qt when you take the q and you take the t is makes the answer mate
