Simplify 1/root2+root1 + 1/root3+root2 + 1/root4+root3 + ... + 1/root100+root99

Which of the following represents a number squared is equal to twenty more than nine times that number ? a) x squared = 9x + 20 b) x squared = 20x + 9 c) x squared > 9 + 20x d) x squared = 9 + x + 20

In a graph with several intervals o data how does a constant interval appear? what type of scenario produces a constant interval?

Find the slope of the line passing through a pair of points