Area of a square is 81 ft.² what is the side length in units.

In the diagram of circle a what is m

Click an item in the list or group of pictures at the bottom of the problem and, holding the button down, drag it into the correct position in the answer box. release your mouse button when the item is place. if you change your mind, drag the item to the trashcan. click the trashcan to clear all your answers. solve this quadratic equation using the quadratic formula. 2x2 - 2x=1 need asap

What is the measure of ac? 5 units 13 units 26 units 39 units 3x- 2b 6x + 9