The answer is given in the attached files.There are 3 layer, input layer, hidden layes and output layes.The hidden layes has 2 neurons a_(1) (1) and a_(2)(1).The output layes has 1 newros a,(2).{:[a_(1)(1)=+1(-10)+x_(1)(+10)+x_(2)(15)],[a_(2)(1)=+1(-15)+x_(1)(-10)+x_(2)(+20)]:}For x_(1)=1 and x_(2)=1 from the moput table,{:[a_(1)(1)=1(-10)+1(10)+1(15)=15],[a_(2)(1)=1(-15)+1(-10)+1(20)=-5.]:}Since a_(1) and a_(2) are sigonoidfunctions; the values cans ... See the full answer