In the diagram of circle C, diameter AB¯¯¯¯¯¯¯¯ is perpendicular to chord MN¯¯¯¯¯¯¯¯¯¯ at point O.
If MO=5x−7 and NO=18, what is the value of x? More help in the attachment.
![In the diagram of circle C diameter AB is perpendicular to chord MN at point O If MO5x7 and NO18 what is the value of x More help in the attachment class=](https://us-static.z-dn.net/files/dfb/4a6fb05a696cfb177e20f5cb78a12199.png)