Answer:
vshsgshbsbdhhh
Step-by-step explanation:
bsbdhbdbbdbbdbdvvdvvvvdhhdhhdhhdhbdbevdvveh
no this is not a quadratic function
X=20° is your answer
X+3x+10°=90°
4x+10°=90°
4x=(90-10)°
X=80/4
X=20°