A bag of numbered lottery balls contains the numbers 1 through 40. What is the probability that a randomly selected ball will be a number that is not between 9 and 18, inclusive?

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

if you need just tell me and i will come to the rescue.

step-by-step explanation:

m=-16

step-by-step explanation:

the opening of this porabola is facing up

step-by-step explanation: