6) ethan uses the function f(x) = 2x2 + 2x + 4 to track the temperature of a substance over 8 hours. you know that f(3) = 28 meaning that the temperature of the substance is 28°c when you plug in a 3 for x. what is the domain of ethan’s function?

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.

Which shows the graph of the solution set of 3y – 2x > –18?

Suppose you are choosing a 6-digit personal access code. this code is made up of 4 digits chosen from 1 to 9, followed by 2 letters chosen from a to z. any of these digits or letters can be repeated. find the total number of personal access codes that can be formed. 492,804 341,172 39,917,124 4,435,236