Tell whether the pairs of angles are always congruent

Which ordered pair is a solution to the system of linear equations? 2x + 3y= 6 –3x + 5y = 10

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.

Find the solution on the interval [0, 2pi)