Answer:
1st option because those angles are a linear pair.
Answer:
$15.2
Step-by-step explanation:
8x^3 -5x^2 + 8x + 9+5x^3 + 3x^2 - 5x + 4 =
8x^3+5x^3-5x^2 + 3x^2+ 8x - 5x+ 9<span>+ 4 = </span>
13x^3-2x^2+3x+13
If they are in the same line yes. If they aren't then its considered non-collinear.
