Henry wants to join a book of the month club. The first club costs $30 to join and $10 per book. The second club costs $15 per book and has no fee to join. How many books
would need to be purchased from each club for the clubs to cost to same?

Use the discriminant to describe the roots of each equation. then select the best description. 2m2 + 3 = m double root real and rational roots real and irrational roots non-real roots

Factor and solve to find roots x squared -x - 90 =0

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?