Jordan shoots a basketball and the ball follows the parabolic path that can be modeled by $$ (height is in feet and time is in seconds). Jordan shoots an air ball (which means he doesn't hit anything and the ball's path doesn't change), at what time will the ball hit the court?

About 0.75 seconds

About 0 seconds

About 1.7 seconds

About 15 seconds

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?