Two angles of a triangle measure 22 and 53 what is the measure of the third angle

One expression below in undefined, and the other expression has a well defined value. which expression is undefined and explain why it has no value. which expression is defined? what is the value of that expression and how do you know? what is a different expression using a trig inverse function that is also undefined?

Find and simplify an expression for the area of five rows of x squares with side lengths of x centimeters.

Vinay constructed this spinner based on the population of teachers at his school according to vinays model what is the probability that he will have a male history teacher two years in a row