Thursday

July 24, 2014

July 24, 2014

Posted by **sarah** on Thursday, February 13, 2014 at 4:38pm.

- math -
**Damon**, Thursday, February 13, 2014 at 4:49pmV = pi r^2 h

= pi (x+5)^2 x = pi (x^2 +10 x +25)x

= pi (x^3 + 10 x^2 + 25 x

= 1920 ????

if so then

x^3 + 10 x^2 + 25 x - 611.15 = 0

find roots:

http://www.mathportal.org/calculators/polynomials-solvers/polynomial-roots-calculator.php

Only real root is at x = 5.52

then r = 10.52

and h = 5.52

**Related Questions**

math - the width of a square-based storage tank is 3m less than its height. The ...

Calculus - Fuel is flowing into a storage tank which can be filled to a depth of...

Calculus - Fuel is flowing into a storage tank which can be filled to a depth of...

Math - Calculate the mass of water in kg and tonne contained in a rectangular ...

Geometry - 2. This cone bottom tank is the perfect solution for transporting ...

math - the design for a water storage tank calls for a radius of 19.5m and a ...

Physics - Suppose you have a perfectly spherical water tank with an inside ...

Physics - Suppose you have a perfectly spherical water tank with an inside ...

math - an open steel tank measures 2m by 2.5m by 3m.It holds 7500 ml of water....

math - An open steel tank measures 2m by 2.5m by 3m.It holds 7500 ml of water. ...