Step-by-step explanation:
z°=180°-25°
z°= 155°
z°=x°=155° (vertically opposite angle).
w°=25°(alternate angle).
y°=z°=155°(alternate angle).
hope this helps you.
Answer:
<u>As AB and CD are parallel lines cut by a transversal, we have:</u>
<u>So the measures are:</u>
The answer is B
4x^2+4x-1
x = √30 or -√30
480 - 16x^2 = 0
divide both sides by 16
30 - x^2 = 0
-x^2 + 30 = 0
-x^2 = -30
X^2 = 30
x = ± √30