angle 1 and angle 2 are vertical angles. angle 2 has a measure of 31 degrees.
what is the measure of angle 1 ?
enter your answer in the box.

The human resources manager at a company records the length, in hours, of one shift at work, x. he creates the probability distribution below. what is the probability that a worker chosen at random works at least 8 hours? probability distribution px(x) 6 hours 7 hours 8 hours 9 hours 10 hours 0.62 0.78 пол