factorise 92 X square + Y square + 8 z square minus 2 under root 2 X Y + 4 under root 2 Y Z - 8 x z ​

For an experiment, a penny is tossed. at the same time, a spinner with 8 congruent sections numbered 1–8 is spun. how many possible outcomes are there for the experiment?

Julia is going for a walk through the neighborhood. what unit of measure is most appropriate to describe the distance she walks?

Set $r$ is a set of rectangles such that (1) only the grid points shown here are used as vertices, (2) all sides are vertical or horizontal and (3) no two rectangles in the set are congruent. if $r$ contains the maximum possible number of rectangles given these conditions, what fraction of the rectangles in set $r$ are squares? express your answer as a common fraction.