Why are 0.02 and 0.020 equal?

Alex drew a circle with right triangle prq inscribed in it, as shown below: the figure shows a circle with points p, q, and r on it forming an inscribed triangle. side pq is a chord through the center and angle r is a right angle. arc qr measures 80 degrees.

In which form is the following function written? y = - 2(x – 3)(x + 5)

Write two point-slope equations for the line passing through the points (6, 5) and (3, 1)