Step-by-step explanation:
The distance formula between two points:

Substitute the coordinates of the points.

If a ≤ b < c are the sides of the right triangle, then
a² + b² = c²

used
for a ≥ 0.
therefore ΔABC is a right triangle.
What multiplied by (x-4) would make x2+5x-36
Sarah can make 2, however she will have 3 feet leftover