This diagram shows the area of a room to be carpeted. What will be the area of the new carpet?

What is sin 7x/4 ? i need on this urgent trig

Find the smallest number by which the given number should be divided to make a perfect cube(with steps or the answer will get reported) a.108 b.2187

Astick 2 m long is placed vertically at point b. the top of the stick is in line with the top of a tree as seen from point a, which is 3 m from the stick and 30 m from the tree. how tall is the tree?