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guapka [62]
3 years ago
6

Suppose you are an elementary school teacher. You want to order a rectangular bulletin board to mount on a classroom wall that h

as an area of 250 square feet. Suppose fire code requirements allow for no more than 30% of a classroom wall to be covered by a bulletin board. If the length of the board is three times as long as the width, what are the dimensions of the largest bulletin board that meets fire code?
Mathematics
1 answer:
drek231 [11]3 years ago
7 0

See https://web2.0calc.com/questions/please-help_38472.

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Answer:

6.

Step-by-step explanation:

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x²-18= 3x

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Simply turn this equation into factored form:

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Answer:

{x  = -1 + √13  ,  x  = -1 - √13}

Step-by-step explanation:

<u><em>Completing the square</em></u>:

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f(x) = 0

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⇔ x + 1 = √13  or  x + 1 = -√13

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Step-by-step explanation:

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All that you need to do is multiply the square meters by 1000000 (one million).

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U
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D. RWS and SWT

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8 0
3 years ago
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