Match the following items.

1. 2x + x + 4 = -17
subtraction
2. 3x + 4 = -17
combine like terms
3. 3x = -21
division
4. x = -7
Given

In the polynomial below, what number should replace the question mark to produce a difference of squares? x2 + ? x - 36

The first floor of marcus’ house is 1,440 square feet. he will cover 1,033 square feet with wood and the rest with tile. a box of tiles will cover 11 square feet. how many boxes of tile does marcus need to buy to cover the floor?

For a science project, a high school research team conducted a survey of local air temperatures. based on the results of the survey, the found that the average temperatures were around 10 degrees higher than expected. this result was wrong. the trouble with the survey was that most of the locations were exposed to direct sunlight and located over asphalt or sand, which resulted in higher temperatures than normal. this is a classic example of an error in which phase of inferential statistics?