The national fire safety code states that a ladder used by a firefighter must be placed so that the distance from the foot of the ladder to the wall is one quarter of the length of the ladder. What angle must a 12-m ladder make with the ground

Apassenger train and a freight train leave san jose at 3pm, traveling in the same direction. the passenger train is going three times as fast as the freight train. at 6pm they are 240 miles apart. how fast is each travelling? explain your answer and show your