The perimeter of a rectangle is 13cm and its width is 11/4. find its length.

Find the given elements if matrix d:

Lindsay used two points, (x,y; ) and (+2.82), to find the equation of the line, y = mx + b, that passes through the points. y2-y, first, she used the definition of slope and determined that the value of mis x, - . given this information, which expression must represent the value of b?

Solve the triangle. a = 21°, c = 105°, c = 5