In a quadrilateral ABCD, AC and BD meet at E. If AE=EC and angle ABC = angle BCD, show that ABCD is a parallelgram​

Astudent survey asked: "how tall are you (in inches)? " here's the data: 67, 72, 73, 60, 65, 86, 72, 69, 74 give the five number summary. a. median: 73, mean: 70.89, iqr: 5, min: 60, max: 74 b. 60, 66, 72, 73.5, 86 c. 60, 67, 72, 73, 74 d. 0, 60, 70, 89, 74, 100

State if the two triangles are congruent. if they are, state how you know?

Find the constant of variation for the relation and use it to write an equation for the statement. then solve the equation.