pivot the system about the element in row 2, column 1. (enter the augmented matrix with all cells in their original position.)

1 2 4 3

2 8 6 4

−1 4 2 3

The distance around the lake is 2 kilometers. ifelena wants to run 14 kilometers this week, howmany laps must she run around the lake

Name the most appropriate metric unit for each measurement like the mass of cow

Weekly wages at a certain factory are normally distributed with a mean of $400 and a standard deviation of $50. find the probability that a worker selected at random makes between $450 and $500