The average depth of water at a certain dock is 6 feet. This varies by 2 feet in both directions with the tide. Suppose high tide is at 4 AM and the tide goes from low to high every 7 hours. Write a function that can be use to express the height of the tide starting at 4 AM. Use "x" as your independent variable.​

Name these type of angles shown check all that applies

Asegment in the complex plane has a midpoint at 7 – 2i. if the segment has an endpoint at 11 – 3i, what is the other endpoint?

Saline iv fluid bags cost $64.20 for 24, 1000 ml bags from one supplier. a new supplier sells 500 ml bags for $2 each. the hospital uses about 10,000, 1000 ml bags each month. nurses report that about half of the bags are more than half full when they are discarded. if you are going to use only one supplier, which size bag provides the best deal, and how much will you save each month? compare the cost of the new supplier to the current one.