If the measure of an angle is 13, find the measure of its supplement

What is the result of adding the system of equations? 2x+y=4 3x-y=6

Which value of m will create a system of parallel lines with no solution? y= mx - 6 8x - 4y = 12

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