Its a square, so all the sides are equal. Also, since the area of a square (rectangles) is equal to the height times the length, which are both the same, the area of the square is equal to x², where x is the length of any one side of the square, x²=256. now you square root both sides of that equation, x=√256, and the square root of 256 is 16.
Tl;Dr: each side is 16 feet long.
Answer:
(3,4)
Step-by-step explanation:
-3+3=0
-4+4=0
Answer:
did you forget a picture?
Step-by-step explanation:
if you did, either put it in a comment, or make a new question
hope this helps:)
Answer: 
This is the same as 
units are in cubic centimeters
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Work Shown:
d = 14 is the diameter
r = d/2 = 14/2 = 7 is the radius

The domain here would be all real numbers, or, in interval notation, (-∞, ∞). there aren't any restrictions on f(x) = x + 90 -- no radicals or fractions or anything that typically limits a domain. this is simply a linear function in which any number could be plugged in for x.