Find the value of x. The diagram is not to scale. Given: angle SRT = angle STR, M Angle SRT = 20, m angle STU = 4x

Agiven line has the equation 2x + 12y = −1. what is the equation, in slope-intercept form, of the line that is perpendicular to the given line and passes through the point (0, 9)? y = ( )x + 9

How to determine whether two known pairs of points are on the same line.

Rhombus adef is inscribed into a triangle abc so that they share angle a and the vertex e lies on the side bc . what is the length of the side of the rhombus if ab=c, and ac=b.