Prova

In elementary algebra, the quadratic formula is the solution of the quadratic equation.

x=-b±b2-4ac2a

Water is made from two elements - Hydrogen and Oxygen. If you put the two gases together, along with energy, you can make water.

2H2g+O2g2H2Ol

The entire formula for the surface area of a cylinder is 2πr2+2πrh