When solving for the value x in the equation 4(x-1) +6= 18, aaron wrote the following lines on the board: lines 1 : 4(x-1) + 6 = 18
line 2: 4(x-1)=12
lines 3: 4x-1=12
lines 4: 4x=13
lines 5: x=13/4

which property was used incorrectly when going from line 2 to line 3

What is the product? a-3/15a × 5/a-3

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?

Which of the following is best modeled using a linear equation y=ax+b, where a is less than 0?