Triangle ABC is a right triangle. If AC =7 and BC=8, find AB . Leave your answer in simplest radical form.

AC=

Step-by-step explanation:

AC is the base, BC is the hypotenuse, so the side length is AB.

We are given that AC=7 units, and BC is equal to 8.

Thus we have 8^2-7^2=(AB)^2

64-49=(AC)^2

15=(AC)^2

AC=

isaiah walks 3 miles due north, turns and then 5 miles due east. how far is he from his starting point?

a^2 + b^2 = c^2

let c = distance from starting point.

(3)^2 + (5)^2 = c^2

9 + 25 = c^2

34 = c^2

sqrt{34} = sqrt{c^2}

sqrt{34} = c