If s(x) = x – 7 and t(x) = 4x2 – x 3, which expression is equivalent to (t circle s) (x)? a. 4(x – 7)2 – x – 7 3
b. 4(x – 7)2 – (x – 7) 3
c. (4x2 – x 3) – 7
d. (4x2 – x 3)(x – 7).

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