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Nonamiya [84]
3 years ago
5

An artist wants to frame a square painting with an area of 400 square inches she wants to know the lenth of the wood trim that i

s needed to go around the painting if x is the length of one side of the painting what equation can you set up to find the length of a side
Mathematics
1 answer:
Jet001 [13]3 years ago
7 0

Answer:

The formula for the area of a square with sides of length x is  A = x2  so  

x2 = 400  is the equation  

This equation has 2 solutions, namely x = ±√400 = +20 or -20  

The negative solution does not make sense because a length cannot be less than 0.  

The total length needed to go around the painting is the perimeter of the square, which is  

P = 4*x = 4*20 = 80 inches

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