Answer:
![\displaystyle [8, -2]](https://tex.z-dn.net/?f=%5Cdisplaystyle%20%5B8%2C%20-2%5D)
Step-by-step explanation:
2x - 18 = x - 10
−8 = −x
[Plug this back into both equations above to get the y-coordinate of −2]; 
I am joyous to assist you anytime.
20/100 is equivalent to 1/5.
Just divide by 20 on the top and bottom. (20/20)/(100/20)=1/5.
Answer:
yes because radius makes 90 degree with it. using Pythagoras theorem, it is seen that 5^2 = 3^2 + 4^2