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2 years ago

HELP PLEASE!!!!!!!!!!!!!!!!!!!!!!

Mathematics

2 answers:

Rainbow [258]2 years ago

8 0

The answer is b because two square d is four and plus which four is eight then negative four times two is negative eight which combine with positive eight equals zero

AleksAgata [21]2 years ago

6 0

Your answer would be b.2

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The area of a rectangular wall of a barn is 85 square feet. Its length is 12 feet longer than the width. Find the length and wid

MaRussiya [10]

Answer:

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Step-by-step explanation:

Given:

The area of a rectangular wall of a barn is 85 square feet.

Its length is 12 feet longer than the width.

Question asked:

Find the length and width of the wall of the barn.

Solution:

Let width of a rectangular wall of a barn = $x$

<u>As length is 12 feet longer than the width.</u>

Length of a rectangular wall of a barn = $12+x$

As we know:

$Area\ of\ rectangle=length\times breadth$

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Subtracting both sides by 85

$x^{2} +12x-85=0\\x^{2} +17x-5x-85=0\\Taking\ common\\x+(x+17)-5x(x+17)=0\\(x+17)(x-5)=0\\x+17=0, x-5=0\\x=-17,x=5$

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3 years ago

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2 years ago