Answer:
116°
Step-by-step explanation:
3x-4+9x+17+6x-31=180
18x-18=180
+18 +18
18x=198
18x/18=198/18
x=11
a=9x+17
a=9(11)+17
a=99+17
a=116°
hopefully this helps :)
Answer:
2√5 +12 or 16.47213595....
Step-by-step explanation:
Answer:
(4,-3)
Step-by-step explanation:
He is incorrect He wrote 50, when it should be 5.
Answer:
no se perdon no entiendo ingles