Answer:
22 Feet
Step-by-step explanation:
All the lengths of a square are the same length.
The area of a square is the length times the width. The length and the width are the same measurement. So, we are looking for the square root of 479.

21.88606863 is as far as my calculator goes. This is an irrational number. That means that it never repeats or terminates as a decimal. They tell us to answer to the nearest foot. That would be 22 feet.
Answer:
ΔVUW ≅ ΔXYW
Step-by-step explanation:
These triangles are congruent by Angle-Side-Angle (ASA) Theorem. This is because they both share two corresponding congruent angles, being Angle U and Angle Y, and Angle VUW and Angle XYW (they're vertical angles, meaning they're congruent).
They also share a corresponding congruent side, being Side UW and Side YW. You can tell because of the congruent dash marks on the sides, that have already been given to you.
Add 4 to both sides
-104 + 4 = -2(1 + 7x)
Simplify -104 + 4 to -100
-100 = -2(1 + 7x)
Divide both sides by -2
-100/-2 = 1 + 7x
Two negatives make a positive
100/2 = 1 + 7x
Simplify 100/2 to 50
50 = 1 + 7x
Subtract 1 from both sides
50 - 1 = 7x
Simplify 50 - 1 to 49
49 = 7x
Divide both sides by 7
49/7 = x
Simplify 49/7 to 7
Switch sides
<u>Answer: x = 7</u>