Algebra 1-49W
Identifying Prime Polynomials
Which polynomials are prime? Check all that apply.
15x2 + 10x - 9x + 7
| 20x2 – 12x + 30x – 18
6x3 + 14x2 – 12x - 28
843 + 20x2 + 3x + 12
11x4 + 4x2 - 6x2 – 16

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.

There are 8 movies that you would like to see currently showing in theatres. in how many different ways can you choose a movie to see this saturday and one to see this sunday?

The plant were you work has a cylindrical oil tank that is 2.5 feet across on the inside and 10 feet high. the depth of the oil in the tank is 2 feet. about how many gallons of oil are in the tank?