3, because a negative number multiplied by another negative number (in this case, itself) will always be a positive number.
Answer:
and 
Step-by-step explanation:
We will take numbers to one side and variables to one side eliminate the "Square" with "Square Root" and solve for the variable x. The process is shown below:

Now, we need to reduce the radical by using the rule shown below:

Now,

The correct answer is
and 
<u>Note:</u> squaring positive and negative makes the same answer
An equivalent statement is CD overbar congruent to EF overbar.
What is a line segment?
The line segment has two fixed-length endpoints, A and B. The distance between this line segment's endpoints A and B is its length.
Here,
Line segment CD is congruent to line segment EF and in geometry, an overbar represents a line segment.
So, we can say that the CD overbar means line segment CD and the EF overbar means line segment EF.
Hence, An equivalent statement is CD overbar congruent to EF overbar.
To learn more about the line segment from the given link
brainly.com/question/17374569
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it is the last one im pretty sure
Answer:
rest of them (40%)
Step-by-step explanation: