While on a car trip with her family, erin saw a sign that read," armarillo 100 miles, lubbock is 80 miles". she concluded that the distance from armarillo to lubbock is 100 - 80=20 miles. was she correct?

The vertices of a triangle are a(7,5), b(4,2), c(9,2). what is m

Idon’t understand! use slope intercept form to solve: through: (2,5) slope= undefined

Recall that the owner of a local health food store recently started a new ad campaign to attract more business and wants to know if average daily sales have increased. historically average daily sales were approximately $2,700. the upper bound of the 95% range of likely sample means for this one-sided test is approximately $2,843.44. if the owner took a random sample of forty-five days and found that daily average sales were now $2,984, what can she conclude at the 95% confidence level?