Answer:
Look here
Step-by-step explanation:
https://pnrtscr.com/kqrkc7
Answer: x = 2/3
Answer:110
Step-by-step explanation:x^2+17x=15x+35
x^2+17x-15x-35=0
x^2+2x-35=0
delta=2^2-4*1*(-35)=4+140=144
x1=(-2+V144)/2=(-2+12)/2=10/2
x=5
so 15*5+35=75+35=110
30°
180-75-75=30
