<img src="https://tex.z-dn.net/?f=%5Csqrt%7B72%7D" id="TexFormula1" title="\sqrt{72}" alt="\sqrt{72}" align="absmiddle" class="l

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WARRIOR [948]

3 years ago

atex-formula">

Mathematics

1 answer:

Makovka662 [10]3 years ago

3 0

$\sqrt{72}=\sqrt{36\cdot2}=\sqrt{36}\cdot\sqrt2=6\sqrt2-irrational\ number\\\\Used\ \sqrt{ab}=\sqrt{a}\cdot\sqrt{b}$

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General Idea:

(i) Assign variable for the unknown that we need to find

(ii) Sketch a diagram to help us visualize the problem

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Applying the concept:

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Statement 2: "He also built a doghouse to put in the pen which has a perimeter that is equal to the area of its base"

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Statement 4: "The perimeter of the pen is 3 times greater than the perimeter of the doghouse."

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Conclusion:

The systems of equations that can be used to determine the length and width of the pen and the area of the doghouse is given in Option B.

$178=x^2+3x-y\\ \\ -6=4x-3y$

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