Final answer:
To calculate the length of AB, we can use the Pythagorean theorem. Let's assume that AB is the hypotenuse of a right triangle with sides of length x and 9. The equation we will use is: x^2 = 7^2 + 9^2. To solve for x, we can substitute the values and simplify the equation. x^2 = 49 + 81, x^2 = 130. Taking the square root of both sides, we get x = sqrt(130). So, the length of AB is sqrt(130) units.
Step-by-step explanation:
To calculate the length of AB, we can use the Pythagorean theorem. Let's assume that AB is the hypotenuse of a right triangle with sides of length x and 9. The equation we will use is: x^2 = 7^2 + 9^2. To solve for x, we can substitute the values and simplify the equation. x^2 = 49 + 81, x^2 = 130. Taking the square root of both sides, we get x = sqrt(130).
So, the length of AB is sqrt(130) units.