Remember
difference of 2 perfect squares
a^2-b^2=(a-b)(a+b)
and the undistributiv propeoryt
ab-ac=a(b-c)
so we have

undistribute and factor

cancel out the one ( (u-2)/(u-2)=1)

is result
12, 16, 20, 44
Just substitute the number on the x side of the table for x in the equation and solve to get the y value.
Answer: 11.6 units.
Step-by-step explanation:
1. Plot the points as you can see in the graph attached.
2. As you can see, the lenght <em>TA</em> is 3 units.
3. Apply the formula for calculate the distance between two points, to calculate the length<em> TP</em> and <em>TA.</em> The formula is:

4. Therefore, you have:


5. The perimeter is the sum of the the lenght of each side, therefore:

6. To the nearest tenth unit:
