Which is the definition of a ray?
a. a part of a line that has one endpoint and extends indefinitely in one direction
b. the set of all points in a plane that are a given distance away from a given point
c. lines that lie in the same plane and do not intersect
d. a part of a line that has two endpoints

How can we find the measure of an exterior angle if we know the measurement of an interior angle

An optical inspection system is used to distinguish among different part types. the probability of a correct classification of any part is 0.92. suppose that three parts are inspected and that the classifications are independent. let the random variable x denote the number of parts that are correctly classified. determine the probability mass function of x. round your answers to four decimal places (e.g. 98.7654). x f(x) 0 1 2 3

Measure of angles 31 (x+4) (3x+9) me