Will mark brainiest for the first one with the correct answer.

Given that ot =5, xt=12, and ox= 13 is xy tangent to circle o at t? explain.

In the diagram, ab is tangent to c, ab = 4 inches, and ad = 2 inches. find the radius of the circle.

The patient recovery time from a particular surgical procedure is normally distributed with a mean of 5.2 days and a standard deviation of 1.7 days. what is the probability of spending more than 2 days in recovery? (round your answer to four decimal places.)