If triangle PQR~= to triangle STU, complete each part.

Find the value of a. the diagram is not to scale. a quadrilateral is drawn. the upper and lower sides are parallel. the interior angle in the upper left corner is labeled a degrees. the angle in the upper right corner is labeled 113 degrees. the angle in the lower right corner is labeled b degrees. the angle in the lower left corner is labeled 36 degrees. a. 36 b. 144 c. 54 d. 126

Solve the equation 3x2 + 19x + 9 = 0 to the nearest tenth.

Solve 3x-18=2y and 5x-6y=14 by elimination or substitution . show all !