What is the slope of p=(4.5,-1) q=(5.3,2).

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.

Use the distance formula to find the distance between (-3,5) and (3,1)

Which situation is an example of an observational study?