Which algebraic expression is a polynomial? 2 m
O 3mn - +
n n
2 mn
5
r_
m
+ 4m5
O
4m?
3mn + 18
n2
O 7mn + 3m
5n
+
4
2.

In the diagram, be and ad pass throughthe center of circle o, and the area ofsector aoc is 47.45 square units. what isthe area of sector boc? use the value =3.14, and round your answer to two decimalplaces.22.33 square units25.12 square units

Find the axis of symmerty for x y=x squared -4x-8

Nina has prepared the following two-column proof below. she is given that ∠oln ≅ ∠lno and she is trying to prove that ol ≅ on. triangle oln, where angle oln is congruent to angle lno nina made two errors in the proof. identify and correct the errors.