The sum of the speeds of two trains is 719.7 miles per hour. If the speed of the first train is 2.3 mph faster than that of the second​ train, find the speeds of each.

Consider the functions below. function 1 function 2 function 3 select the statement which is true about the functions over the interval [1, 2] a b function 3 has the highest average rate of change function 2 and function 3 have the same average rate of change. function and function 3 have the same average rate of change function 2 has the lowest average rate of change d.