The sum of the measures of the interior angles of a polygon is 540��. classify the polygon by the number of sides. pentagon quadrilateral hexagon triangle

Monitors manufactured by tsi electronics have life spans that have a normal distribution with a standard deviation of 1800 hours and a mean life span of 20,000 hours. if a monitor is selected at random, find the probability that the life span of the monitor will be more than 17,659 hours. round your answer to four decimal places.

An ant travels at a constant rate of 30cm every 2 minutes. at what speed does the ant travel per minute

Agrid shows the positions of a subway stop and your house. the subway stop is located at (-5,2) and your house is located at (-9,9). what is the distance, to the nearest unit, between your house and the subway stop?