COORDINATE GEOMETRY Find the coordinates of the orthocenter of the triangle with the given vertices. P(-1,2), Q(5,2), R(2,1)

Atriangle has side lengths of 15 inches and 30 inches. it also has angles that measure 45º and 20º. which of the following identifies the possible third angle of the triangle? a. 15 in., 65º b. 45 in., 65º c. 17 in., 115º d. 14 in., 115º

What are “like terms”? why can we only add like terms?

Ten times the square of a non-zero number is eqaul to ninety times the number