One square megameter is equal to 1.0×10^6 square kilometers. How many square megameters are in 4,000,000 square kilometers?

F(x)= 1/x-4, g(x)=4x+1/x a. use composition to prove whether or not the functions are inverses of each other. b. express the domain of the compositions using interval notation.

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.

The ratio of the measures of the three angles in a triangle is 2: 9: 4. find the measures of the angels