help on A-E keep getting incorrect solutions. thank you

Problem 6.5 Part A SP-25KN. P. 25 INFO) Determine the force in member AB of the truss. Express your answer to three significant figures and include the appropriate units. En negative value in the case of compression and positive value in the case of tension BA Value Units Subm Restante Part B Determine the force in member AD of the truss Express your answer to three significant figures and include the appropriate units Ente negative value in the case of compression and positive value in the case of tension BA FAD - Value Units Subme Request Answer Part Determine the force in member of the truss Express your answer to three significant figures and include the appropriate units Enter negative value in the case of compression and positive value in the case of tension Figure sort Foc - 5 8 KN Submi Previous Request Anna * Incorrect: Try Again: 5 attempts remaining 2 m Part D Determine the force in BD of the Express your answer in three in 5 Fyc = 5 KN Submit Previous Answers Request Answer * Incorrect; Try Again; 5 attempts remaining Part D Determine the force in member BD of the truss. Express your answer to three significant figures and include the appropriate units. Enter negative value in the case of compression and positive value in the case of tension. HA ? FED - Value Units Submit Request Answer Part E Determine the force in member CD of the truss. Express your answer to three significant figures and include the appropriate units. Enter negative value in the case of compression and positive value in the case of tension. ? Fcp = Value Units Submit Request Answer Return to Assinnmant Provide Feerihack