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BARSIC [14]
3 years ago
15

The side lengths of a square rug is 7b feet. Will the rug cover a square floor with area 56b^2 feet^2? Explain your reasoning.

Mathematics
2 answers:
Bond [772]3 years ago
7 0
Simple answer, No. Let;s assume b=2 7b would equal 7x2, which is 14. 56b would equal 56x2 that is equal to 112. 112 is way more than 14. So, no. 7b will not cover it.
pochemuha3 years ago
6 0

Answer:

Step-by-step explanation:

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Step-by-step explanation:

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Step-by-step explanation:

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Step-by-step explanation:

For this case we have the following equation given:

x^2 +4x +y^2 -20 y +100=0

We want to find a general expression given by:

(x-h)^2 +(y-k)^2 = r^2

Where the center is (h.k) and the radius is r.

We can begin completing the squares of the equation given and we got:

x^2 +4x +(4/2)^2 +y^2 -20 y +(20/2)^2 +100 = (4/2)^2 +(20/2)^2

And solving we got:

x^2 +4x+ 4 +y^2 +20y +100 +100 = 4 +100

If we subtract 100 from both sides we got:

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Then we can conclude that the center is:

C= (-2,-10)

And the radius would be:

r = \sqrt{4}=2

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