deon throws a ball into the air. the height, h, of the ball, in meters, at time t seconds is modeled by the function h(t)=-5t^2 + t +4

What is the range for 31,39,29,34,37,24,36,33,34,28

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?

Which of the following parabolas opens down?