Ineed with math fast (well explained) worth 18
1: a ball is arremesada in the air and its height above the ground in time x (in seconds) is given by the function f (x) = x² - 5x. determine how long the ball hit the ground again.
2: a banking application yields a day x mesum value in real given by the function f (x) = x² - 4x - 5. determine the days when there is no income that application.
me : )

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?