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2 years ago

Tomika uses 6/19 inches of wire to make a necklace and 3/13 inches of wire to make a bracelet.

Mathematics

1 answer:

Kay [80]2 years ago

7 0

Answer:

#Answer: 3 Step-by-step explanation: Common sence 8 months ago 3 0 Answer: There are 3 necklace and bracelet sets she can make . Step-by-step explanation: Since we have given that Length of wire she used to make a necklace is given by Length of wire she used to make a bracelet is given by Total length of wire she is used in all is given by Now, we calculate number of necklace and bracelet sets she can make , So, So, there are 3 necklace

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Answer:

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Consider, the given Quadratic equation, $x^2+4=6x$

This can be written as , $x^2-6x+4=0$

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For a given quadratic equation $ax^2+bx+c=0$ we can find roots using,

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Where, $\sqrt{b^2-4ac}$ is the discriminant.

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Substitute in (1) , we get,

$x=\frac{-b\pm\sqrt{b^2-4ac}}{2a}$

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$\Rightarrow x=\frac{6\pm 2\sqrt{5}}{2}$

$\Rightarrow x={3\pm \sqrt{5}}$

$\Rightarrow x_1={3+\sqrt{5}}$ and $\Rightarrow x_2={3-\sqrt{5}}$

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Substitute, we get,

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Thus, the two root of the given quadratic equation $x^2+4=6x$ is 5.24 and 0.76 .

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