What is the average rate of change if the integvsl

Solve the equation by completing the square. x^2+2x=17

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?

Assume that y varies inversely with x. if y=1.6 when x=0.5 find x when y=3.2 acellus answer