Asack full of medals contains gold, silver, and bronze. if selected at random, the probability of picking a gold medal is 5/12. the probability of picking a silver medal is 1/3. what is the probability of picking a bronze medal? express the probability as a number between 0 and 1.

answer: option a.

step-by-step explanation:

you know that the quadrilateral opqr ( a four sided figure) is inscribed in circle. this means that all its vertices are on the circle.

then, by definition, the opposite angles of the quadrilateral are supplementary, this means that the sum of their measures is 180 degrees.

you can observe in the figure that the angles ∠opq   and the angle ∠orq   are opposite, therefore:

then, can be used to d to calculate the measure of ∠opq