The owner of a roller skating rink plans to buy new equipment in four years. The new equipment has. cost of $85,000. She believes she can earn 10% interest compounded quarterly. Find the amount of each quarterly payment needed. Use the factor 0.05160, which corresponds with 2.5% interest over 16 periods.

Acable car begins its trip by moving up a hill. as it moves up, it gains elevation at a constant rate of 50 feet/minute until it reaches the peak at 2,000 feet. then, as the car moves down to the hill’s base, its elevation drops at the same rate.

The graph below represents the number of dolphins in a dolphin sanctuary. select all the key features of this function.

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?