Discover Questions

In one mole of the compound iron(III) oxide,
what fraction of the total number of ions is
the oxygen ion? Find all solutions to the following system of nonlinear equations.
(x − 2)^2 + y ^2 = 20
(x + 2)^2 + y^ 2 = 20? If a+b+c=4, ab+ac+bc=6, and abc=3, what is 1/a + 1/b + 1/c? Problem involving math induction! If m and n are distinct real numbers, prove that (m+2)^2 = (n+2)^2 if and only if x+y=-4? What is cycle time for astm?