What is the Range

13,23,34,6,13,10,26,28,20,17

Which describes the difference between the graph of f(x)=x^2 and g(x)=-(x^2-2)

You are standing next to a really big circular lake. you want to measure the diameter of the lake, but you don't want to have to swim across with a measuring tape! you decide to walk around the perimeter of the lake and measure its circumference, and find that it's 400\pi\text{ m}400? m. what is the diameter dd of the lake?

Grant simplified the expression 1.5(-3.2 + 2.5) his work is shown below explain the error in grants work