I would go with D. Hope that helps :)
Answer: Irrational
Step-by-step explanation:
Hey is there a way you could send a photo of the equation
Answer:

Step-by-step explanation:
From the isosceles-base theorem, the measure of the angles adjacent to the pair of congruent sides of the triangle are equal. Since the problem declares
, the remaining unknown angles are equal (
). The sum of the interior angles of a triangle always add up to
.
Therefore:
.
-4x +4 = -3x + 31
4 - 31 = -3x + 4x
-27 = x