Which equation does the graph of the systems of equations solve? a) x2 − 2x − 1 = −x2 + 3 b) x2 − 2x + 3 = x2 − x + 1 c) −x2 − 2x + 2 = 2x2 − x − 2 d) −x2 − 2x + 1 = 2x2 − x + 2

Brian, chris, and damien took a math test that had 20 questions. the number of questions brian got right is 14 more than the number of questions chris got right. damien correctly answered 2 less than the number of questions chris answered correctly. if brian and damien have the same score, which statement is true?

36x2 + 49y2 = 1,764 the foci are located at: (-√13, 0) and (√13,0) (0, -√13) and (0,√13) (-1, 0) and (1, 0)edit: the answer is (- the square root of 13, 0) and (the square root of 13, 0)

What is the value of x in this triangle? a. 53° b. 62° c. 65° d. 118°