8.answer both parts a and b please

(6%) Problem 8: In the figure, these three resistors are connected to a voltage source so that R2 = 4.25 9 and R3 = 8.5 9 are in parallel with one another and R1 that combination is in series with R1 = 0.75 9. Forbes, David - david.forbes@doane.edu 12.0 V R2 12 13 R3 @theexpertta.com - tracking id: 9N69-72-B9-45-AB7A-40029. In accordance with Expert TA's Terms of Service. copying this information to any solutions sharing website is strictly forbidden. Doing so may result in termination of your Expert TA Account. D A 50% Part (a) Calculate the power being dissipated by the third resistor R3, in watts. Grade Summary P3 = W Deductions 0% Potential 100% sin() cos() tan() 7 8 9 HOME Submissions Attempts remaining: 1 cotan( asinQ acos() 4 5 100% per attempt) atan( acotan( sinh() 2 3 detailed view cosh() tanh() cotanh() + 0 END Degrees O Radians VO BACKSPACE CLEAR Submit Hint Feedback I give up! Hints: 0% deduction per hint. Hints remaining: 3 Feedback: 0% deduction per feedback. 4 50% Part (b) Find the total power supplied by the source, in watts