The width of the rectangle is 5 inches less than it's length, and the area is 84 square inches. what are the length and width of the rectangle?

Find the value of tan theta if sin theta = 12/13 and theta is in quadrant 2

Don't know how to find x given these segment lengths

Evaluate the discriminant of each equation. tell how many solutions each equation has and whether the solutions are real or imaginary. x^2 + 4x + 5 = 0