Match each pair of the line to the correct description 1.parallel lines
2.EF and CD
3.perpendicular lines
4.GH and EF
5.neither parallel nor perpendicular lines
7.AB and CD

Can somebody 1. what is the formula for finding the vertical distance between two points on a coordinate plane?

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

Charlie tosses five coins.what is the probability that all five coins will land tails up.