Please help me solve these problems

5. [11 Points] DETAILS Use the Law of Cosines to solve the triangle. Round your answers to two decimal places. 6. [-11 Points] DETAILS MY NOTES ASK YOUR TEACHER A baseball player in center field is approximately b = 400 feet from a television camera that is behind home plate. A batter hits a fly ball that goes to the wall 420 feet from the camera (see figure). The camera turns 6 : 6 to follow the play. Approximately how far does the center elder have to run to make the catch? (Round your answer to one decimal place.) :n