A plane is flying 5 miles above the ground. The horizontal distance from the airplane to the start of the
runway is 19 miles. What is the angle of depression the
airplane must use for its descent?

With this one. will mark brainliest

Under normal conditions, 1.5 feet of snow will melt into 2 inches of water. during a winter season high in the mountains, 301 feet of snow fell. how many inches of water will there be when the snow melts?

If the ratio of sum of the first m and n terms of an ap is m2 : n2 , show that the ratio of its mth and nth terms is (2m − 1) : (2n − 1).