Which expression represents the determinant of A={-3 6 1 -6}
det(A) = (–3)(–6) – (1)(6)
det(A) = (–3)(–6) + (1)(6)
det(A) = (1)(6) – (–3)(–6)
det(A) = (–3)(–6) + (–1)(–6)

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