An observant stationed 20m away from a tall building finds that the angle of elevation of the top building is68°and the angle of depression of its foot is 50° calculate the height

"how does lena finally defeat the robots? ” this question will best be used to describe the story’s exposition. rising action. climax. falling action.

Apark is in the shape of a rectangle. the park authorities are planning to build a 2-meter-wide jogging path in the park (shown as the shaded region in the image). what is the area of the jogging path? plz

Complete the solution of the equation. find the value of y when x equals to 6 4x+y=20