Which polynomial represents the algebra tile configuration shown?

x2 + 3x + 4
x2 + 3x − 4x
−x2 − 7
−x2 + 3x − 4

Before simplifying, how many terms are there in the expression 2x - 5y + 3 + x?

Proving the parallelogram diagonal theoremgiven abcd is a parralelogam, diagnals ac and bd intersect at eprove ae is conruent to ce and be is congruent to de

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?