3 years ago

Please help, file is attached

Mathematics

1 answer:

Arada [10]3 years ago

5 0

M/_b = 90-55=35°......

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D. X=-2+sqrt(3) or -2-sqrt(3)

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Step-by-step explanation:

Quadratic Equation given:

$\frac{1}{4} x^2+x+\frac{1}{4}=0$

In order to get rid of the fractions, multiply both sides by 4.

$\frac{1}{4}x^2\cdot \:4+x\cdot \:4+\frac{1}{4}\cdot \:4=0\cdot \:4$

We get:

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Completing the square:

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$x=-2\pm\sqrt{3}$

$x_{1} =-2+\sqrt{3} \\x_{2} =-2-\sqrt{3}$

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