Explain why the polynomial 144x2 − 200x + 81 is not a perfect square. a. 81x ≠ 2(20x ∙ 9) b.144x ≠ 2(20x ∙ 12) c.200x ≠ 2(9x ∙ 12) d200x ≠ 2(12x ∙ 9)

Let f (x) = x e8x. find a formula for the nth derivative of f, where n is any positive integer. use x and n in your answer if needed. f (n)(x) =

If, while training for a marathon, you ran 60 miles in 2/3 months, how many miles did you run each month? (assume you ran the same amount each month) write your answer as a whole number, proper fraction, or mixed number in simplest form. you ran __ miles each month.

How many ordered pairs of positive integers satisfy xy=32?