Point \blue{A}Astart color #6495ed, A, end color #6495ed is at \blue{(-4, 8)}(−4,8)start color #6495ed, left parenthesis, minus, 4, comma, 8, right parenthesis, end color #6495ed and point \purple{M}Mstart color #9d38bd, M, end color #9d38bd is at \purple{(1, 7.5)}(1,7.5)start color #9d38bd, left parenthesis, 1, comma, 7, point, 5, right parenthesis, end color #9d38bd. Point \purple{M}Mstart color #9d38bd, M, end color #9d38bd is the midpoint of point \blue{A}Astart color #6495ed, A, end color #6495ed and point \green{B}Bstart color #28ae7b, B, end color #28ae7b. What are the coordinates of point \green{B}Bstart color #28ae7b, B, end color #28ae7b?

Aking and his army will attempt to capture a fortress. the left and right flanks break off from the main group to attack the west and east guard towers. suppose the left flank has a 60% chance of success and the right flank has a 75% chance of success, independently of one another. if both flanks capture their respective targets, then the king has a 98% chance of successfully taking the fort. if, however, only the left flank captures its tower, the king has an 80% chance of success; if only the right flank succeeds, the king has a 50% chance. if both flanks fail, then the king's chance of capturing the fort drops to 20%. it turns out the king captures the fort. what is the probability that one, and only one, flank was successful (either the left, or the right, but not both)? (round your answer to 3 decimal places)