3/4_6/8_9/12 is it =;> or =;< or >;= or is it =;=

Astick 2 m long is placed vertically at point b. the top of the stick is in line with the top of a tree as seen from point a, which is 3 m from the stick and 30 m from the tree. how tall is the tree?

Me complete this proof! prove that a quadrilateral is a square. me with the steps for this proof.

Hell . what are the solutions to `10x^2 - 38x - 8 = 0`? is this when i find the factors and use the numbers within the factors to determine the zeros? i hope that made sense lol