Atrack and field playing area is in the shape of a rectangle with semicircles at each end . the perimeter of the track is to be 1200 meters. what should the dimensions of the rectangle be so that the area of the rectangle is maximum? what is the maximum area?
you must use completing the square technique to solve this problem. show all your work.

The number of members f(x) in a local swimming club increased by 30% every year over a period of x years. the function below shows the relationship between f(x) and x: f(x) = 10(1.3)xwhich of the following graphs best represents the function? graph of f of x equals 1.3 multiplied by 10 to the power of x graph of exponential function going up from left to right in quadrant 1 through the point 0, 0 and continuing towards infinity graph of f of x equals 10 multiplied by 1.3 to the power of x graph of f of x equals 1.3 to the power of x