2 years ago

Solve

absmiddle" class="latex-formula"> find the exact values of x

1 answer:

8 0

$6x^2-42=0\implies 6x^2=42\implies x^2=\cfrac{42}{6}\implies x^2=7 \\\\\\ x=\pm\sqrt{7}\implies x\approx \pm 2.65$

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Alla [95]

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3 years ago

vova2212 [387]

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Law Incorporation [45]

The perimeter of the park is 3x^2 + 37x - 4

<h3>How to determine the perimeter?</h3>

The side lengths of the triangular park are:

10x + 3x^2 - 8, 12x and 15x + 4

Add these sides to determine the perimeter

P = 10x + 3x^2 - 8 + 12x + 15x + 4

Collect the like terms

P = 3x^2 + 10x + 12x + 15x - 8 + 4

Evaluate the sum

P = 3x^2 + 37x - 4

Hence, the perimeter of the park is 3x^2 + 37x - 4