Find the value of x for a to be parallel to b. m∠ ∠ 1 = 117 and m∠ ∠ 2 = 6x– 12

Which is the equation of an ellipse with directrices at x = ±4 and foci at (2, 0) and (−2, 0)?

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?

Find and simplify an expression for the area of five rows of x squares with side lengths of x centimeters.