You meet two students in the library. At least one of them is an upperclassman who is currently taking EECS 126. Assume each student is an upperclassmen and underclassmen with equal probability and each student takes 126 with probability 1 10 , independent of each other and independent of their class standing. What is the probability that both students are upperclassmen

Given: lines a and b are parallel and line c is a transversal. prove: 2 is supplementary to 8 what is the missing reason in the proof? statement reason 1. a || b, is a transv 1. given 2. ∠6 ≅ ∠2 2. ? 3. m∠6 = m∠2 3. def. of congruent 4. ∠6 is supp. to ∠8 4. def. of linear pair 5. ∠2 is supp. to ∠8 5. congruent supplements theorem corresponding angles theorem alternate interior angles theorem vertical angles theorem alternate exterior angles theorem