Unit 3 Application Problems

1) Suppose you are at coordinate (1, 1).  You know you need to walk 5 miles (or units) to the street with equation y = 5.  What are the possible x-coordinates for where you will arrive at the street?

It is known that the surface area and volume of a sphere are expressed as:

2) If the surface area of a sphere is 100 sq inches, what is the radius of the sphere?

3) If the volume of a sphere is 300 cubic inches, what is the radius of the sphere?

4) If the surface area of a sphere is 60 sq inches, what is the volume of the sphere?