- Please i need the elongation for chemical elements?

Discover Questions

Could someone help me with these math problems? I can't figure them out. Solve the linear equation;
x+2y=15
y=-2x+0 9x-12y=-3
-12x+16y=4? Is there a musical term for two independent, non-complementary, parts being played simultaneously? What about for three parts? When the pressure that a gas exerts on a sealed container changes from -atm to 1.80 atm, the temperature changes from 86.0 C to 30.0 C.? Can reality itself be programmed by interacting with it - in particular asking questions that lead to where you're directing it to go? Find all solutions to the following system of nonlinear equations.
(x − 2)^2 + y ^2 = 20
(x + 2)^2 + y^ 2 = 20?