\begin{aligned} &-x+4y=-9 &y=-2x +6 \end{aligned}



−x+4y=−9

y=−2x+6



Is (2,3)(2,3)left parenthesis, 2, comma, 3, right parenthesis a solution of the system?

Danny draws a transversal, t, on two parallel lines ab and cd, as shown below: he makes the following table to prove that the alternate interior angles are equal: which is the missing justification? (6 points) corresponding angles formed by a transversal on parallel lines are supplementary. corresponding angles formed by a transversal on parallel lines are congruent. co-interior angles formed by a transversal on parallel lines are congruent. co-exterior angles formed by a transversal on parallel lines are congruent.

In δabc, m∠acb = 90°, cd ⊥ ab and m∠acd = 45°. find: a find cd, if bc = 3 in

7+(3n++8) what is the answer to this?