What is the solution to the trigonometric inequality sin(x)>cos(x) over the interval 0<=x<=2piradians?

Given the graph below state whether or not the relation is a function, and give the domain and range.

Two lines parallel to the same plane are parallel to eachother

David is spreading mulch on a triangular area of his flower bed. the coordinates of the vertices of the area are (1, 3), (9, 3), and (4, 6). what is the area of the triangle if each square has an area of 3 square feet?