Answer:
x=30
Step-by-step explanation:
2x+x+90=180 (anglesome prop.)
3x+90=180
3x=180-90=90
3x=90
x=90/3=30
Answer:
0
Step-by-step explanation:
because jsnsjksnsjskskjsjsjsjsjnsnsjsnsnjsnsnnens
Answer:
Step-by-step explanation:
This polynomial has only 3 terms, so it is a trinomial. <em>Hope it helps!</em>