Rami is solving the equation for x . –6x – 1 = 5 –6x – 1 1 = (5 1) –6x = 6 –6x – 6 = 6 –6 x = –1 which operation symbols should rami write in the and the ? should contain +; should contain × should contain +; should contain ÷ should contain –; should contain × should contain –; should contain ÷

the answer is: b square = plus, circle is division

Through non-collinear points there is exactly one plane.

Factor the following expression. 27y3 – 343 a. (3y + 7)(9y2 + 2ly + 49) b. (3y – 7)(9y2 + 2ly + 49) c. (3y – 7)(932 – 217 + 49) d. (3y + 7)(92 – 2ly + 49)

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