What are factor pairs of 21 x squared

Need ! discuss how to convert the standard form of the equation of a circle to the general form. 50 points

Which is the solution to the inequality? 2 3/52 1/15 b< 3 2/15 b> 3 2/15

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