The angle of elevation of a boy on top of a tree from a girl sitting on the ground is 61°. What is the angle of depression of the girl from the boy? ​

Aswimming pool is a rectangle with semicircles on the end. the rectangle is 12 meters wide and 30 meters long. the diameter and width of the swimming pool are equal. sketch and label an overhead diagram of the swimming pool. find the area of the swimming pool floor.

Solve for x and select the correct answer

Solve the following: 12(x^2–x–1)+13(x^2–x–1)=25(x^2–x–1) 364x–64x=300x