K A rectangle is constructed with its base on the x-axis and two of its vertices on the parabola y = 361 - x2. What are Let A be the area of the rectangle. What is the objective function that relates A and x? A = 2x (361-x2) (Type an expression.) The interval of interest of the objective function is [0, 19]. (Simplify your answer. Type your answer in interval notation.) In the rectangle with the maximum area, the shorter dimension is about and the longer dimension is about (Round to two decimal places as needed.) tbook Ask my instructor Search