By installing efficient water fixtures, the average american can reduce water use to about 45 gallons of water per day. using such water fixtures, about how many gallons of water would be the average american use in december?

Find the average rate of change for f(x) = x2 − 3x − 10 from x = −5 to x = 10.

Graph g(x)=2cosx . use 3.14 for π . use the sine tool to graph the function. graph the function by plotting two points. the first point must be on the midline and closest to the origin. the second point must be a maximum or minimum value on the graph closest to the first point.

Is the product of two rational numbers irrational or rational? first, make a hypothesis by multiplying two rational numbers. then, use variables such as x=a/b and y=c/d and the closure property of integers to prove your hypothesis.