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Arithmetic with Polynomials: Mastery Test
Submi
Select the correct answer from each drop-down menu.
Simplify the given polynomial and use it to complete the statement
(872 - 5% - 7) - (9x2
3x - 5) + (+ 7)(* + 1)
The polynomial simplifies to an expression that is a
y with a degree of
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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.