A livestock company reports that the mean weight of a group of young steers is 1143 pounds with a standard deviation of 92 pounds. Based on the model N(1143,92) for the weights of steers, what percent of steers weigh a) over 1150 pounds?
b) under 950 pounds?
c) between 1050 and 1100 pounds?

solve systems of equations by graphing. a system of linear equations contains two or more equations e.g. y=0.5x+2 and y=x-2. the solution of such a system is the ordered pair that is a solution to both equations. to solve a system of linear equations graphically we graph both equations in the same coordinate system