A parabola has a vertex at the origin. The focus of the parabola is located at (–2,0). Which is the equation for the directrix related to the parabola? y = 2 x = 2 y = –2 x = –2

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.

Name each raycalculation tip: in ray "ab", a is the endpoint of the ray.

What is the percentile for data value 6 in the following data set? 4 13 8 6 4 4 13 6 4 13 2 13 15 5 9 4 12 8 6 13 40 25 35 62