110.254 rounded to the nearest 10th

What statement is true? 2x^2-9x+2=-1

This is about circle theorems. someone asap : (

Two poles, ab and ed, are fixed to the ground with the of ropes ac and ec, as shown: what is the approximate distance, in feet, between the two poles? 6.93 feet 8.66 feet 12.32 feet 15.59 feet