Rays of light incident on a lens and parallel to the principal axis of the lens converge

10 ! a train starts from grand city and travels toward belleville 388 miles away. at the same time, a train starts from belleville and runs at the rate of 47 miles per hour toward grand city. they pass each other 4 hours later. find the rate of the train from grand city.

Find the amplitude of a sinusoidal function that models this temperature variation

Which term describes the point where the perpendicular bisectors of the three sides of a triangle intersect?