Friday

January 30, 2015

January 30, 2015

Posted by **Eleanor** on Saturday, November 17, 2012 at 10:42am.

The cylinder has base radius 2x and height 9x.

E cylinder is melted down and made into a sphere of radius r.

Find the expression for r in terms of x.

- Math -
**PsyDAG**, Saturday, November 17, 2012 at 11:47amV = πr^2h = π(2x)^2(9x) = 4/3πr^2

This is volume of the cylinder and volume of the sphere. You can simplify this.

**Answer this Question**

**Related Questions**

Physics - Four objects - a hoop, a solid cylinder, a solid sphere, and a thin, ...

Calc - cylindrical can is to be made from a rectangular piece of aluminum that ...

math - A solid sphere of radius Xcm is placed in a cylinder of radius 2Xcm and ...

11th Grade-Calc - cylindrical can is to be made from a rectangular piece of ...

math - A right circular cylinder is to be inscribed in a sphere of given radius...

Math - The volume of a cylinder is given by formula V= pi(3.14) r^2h where r is ...

Math - A hemisphere of radius 7 sits on a horizontal plane. A cylinder stands ...

Math: Geometry - The circumference of the base of a cylinder is 16 cm. The ...

math - A paperweight containing liquid is made up of a cone and a cylinder. The ...

Geometry - Two cylinders have the same volume. If the radius of cylinder I is 3 ...