A unit train is hauling 120 tons of grain per car, northerly at 45 mph from an agricultural depot near the Moscow, Idaho. There are 40 hopper railcars and they are all attached to what number of 4500-horsepower, 85% efficiency-rated locomotives

The table below shows the approximate height of an object x seconds after the object was dropped. the function h(x)= -16x^2 +100 models the data in the table. for which value of x would this model make it the least sense to use? a. -2.75 b. 0.25 c. 1.75 d. 2.25