Type the correct answer in the box. use numerals instead of words. if necessary, use / for the fraction bar. squares abcd and efgh share a common center on a coordinate plane, as shown in the figure. is parallel to diagonal . the number of lines of reflection about which the combined figure can reflect onto itself is .

The data set represents the ages of players in a chess club. 27, 34, 38, 16, 22, 45, 54, 60. what is the mean absolute deviation of the data set?

Graph a triangle (xyz) and reflect it over the line y=x to create triangle x’y’z’. describe the transformation using words. draw a line segment from point x to the reflecting line, and then draw a line segment from point x’ to the reflecting line. what do you notice about the two line segments you drew? do you think you would see the same characteristics if you drew the line segment connecting y with the reflecting line and then y’ with the reflecting line? how do you know?

What is the answer to question 11? will give extra points! include a explanation (reasonable) for you : )