The Pythagorean theorem is A^2 + B^2 = C^2. So you will do 9^2 + 12^2 = 225. The square root of 225 is 15, and so is the answer d. hope this helps
3 months of homework, w t h have u been doinggg
Every x value should have only one value of y.
So the answer is the last choice.