What is 0.2 to the fourth power +2.1×0.5 to the third power

In the diagram of circle a what is m

Find the measure of angle y. round your answer to the nearest hundredth. ( type the numerical answer only) a right triangle is shown with one leg measuring 5 and another leg measuring 14. an angle across from the leg measuring 5 is marked y degrees. numerical answers expected!

Cole says the distance between points (-5,0) and (0,-5)is 5 units. is he correct? explain why or why not.