Which angle is not necessarily congruent to 1?

Multiply −2x(6x^4−7x^2+x−5) express the answer in standard form. enter your answer in the box.

What is the value of x in the equation (2)3) (x+6)= -18 a. -36 b. -33 c. -24 d. -18

Which of the following correctly justifies statement four of the two column proof? a. corresponding angles theorem b. transitive property of equality c. vertical angle theorem d. substitution property of equality