Through the height of an equilateral tetrahedron a, we construct a plane that intersects the lateral faces along three lines creating with the base plane of the tetrahedron with angles x, y, z. Prove: tan²x + tan²y + tan²z = 12

Ifound this on google “a skewed (non-symmetric) distribution is a distribution in which there is no such mirror-imaging. a "skewed right" distribution is one in which the tail is on the right side. a "skewed left" distribution is one in which the tail is on the left side. the above histogram is for a distribution that is skewed right.” i hope this you for what your looking for

Aand b are correctly balanced reactions. they have the same number of atoms in both sides of the reaction

Ibelieve it’s b? hopefully