The maximum speed of China's CRH380A is 4.873 x 10^2 kilometers per hour. Why is the greatest number of kilometers the train could travel in 16 hours? Express your answer in scientific notation

When a 757 passenger jet begins its descent to the ronald reagan national airport in washington, d.c., it is 3900 feet from the ground. its angle of descent is 6 degrees. how far must the plane fly to reach the run way? a. 37,106 ft b. 37,310.4 ft c. 23,456.6 ft d 2,492.7 ft