What is the missing statement in step 3 of the proof? m<1 = m<2
m<1 + m<2 = 90°
m<2 = m<3
m<2 + m<3 = 180°

Use the normal approximation to the binomial distribution to answer this question. fifteen percent of all students at a large university are absent on mondays. if a random sample of 12 names is called on a monday, what is the probability that four students are absent?

The sat and act tests use very different grading scales. the sat math scores follow a normal distribution with mean 518 and standard deviation of 118. the act math scores follow a normal distribution with mean 20.7 and standard deviation of 5. suppose regan scores a 754 on the math portion of the sat. how much would her sister veronica need to score on the math portion of the act to meet or beat regan's score?

Polygon abcde is reflected to produce polygon a′b′c′d′e′. what is the equation for the line of reflection?