Which transformation could NOT be used to prove that two circles are congruent to one another? a dilation with a scale factor of 2
a dilation with a scale factor of 1
a reflection
a rotation

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

Math each whole number with a rational, exponential expression

Can someone me and explain..will award brainlest!