Answer:
81
Step-by-step explanation:

Definitely irrational because the decimal never repeat
Answer:
1/2 8/16 6/12
Step-by-step explanation:
Answer:
does BD bisect angle EBC?
Looks like the labeled angle is bisected, in which case we can apply the angle bisector theorem. For this triangle, it says

Solve for
:




Then either
or
, but since
is a length, it must be positive. So <em>x</em> = 2.