What is the eccentricity of an ellipse with a semimajor axis of 50 units and a focus located 20 units where both are measured from the center? Round your final answer to two decimal places. Attach an image of your handwritten work showing the steps taken to complete the problem. On the toolbar at the top of the answer box, select the vertical ellipse menu, then the Images icon, then the Upload Image option. Your submission will receive no credit if the answer is presented without uploading an image of your handwritten work.