Find an equation for the perpendicular bisector of the line segment whose endpoints are (-8,-3) and (2, 3)

What is the product of the radical expression. (7-2square root) (8+2 square root)

Consider that lines b and c are parallel. what is the value of x? what is the measure of the smaller angle?

Assume that adults have iq scores that are normally distributed with a mean of mu equals 100 and a standard deviation sigma equals 20. find the probability that a randomly selected adult has an iq between 80 and 120.assume that adults have iq scores that are normally distributed with a mean of mu equals 100 and a standard deviation sigma equals 20. find the probability that a randomly selected adult has an iq between 80 and 120.