2 years ago

2х + 7y = 1 2х - 4y = 12

Mathematics

1 answer:

solong [7]2 years ago

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Answer:

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lora16 [44]

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Step-by-step explanation:

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3 years ago

What is the best first step in solving the equation 3 +<img src="https://tex.z-dn.net/?f=3%5Csqrt%5B6%5D%7Bx%7D" id="TexFormula1

Andreas93 [3]

$3+3\sqrt[6]{x}~~ = ~~5\implies \stackrel{\textit{1st step,-3 to both sides}}{3\sqrt[6]{x}~~ = ~~2}\implies \sqrt[6]{x}=\cfrac{2}{3} \\\\\\ (\sqrt[6]{x})^6=\left( \cfrac{2}{3} \right)^6\implies x=\cfrac{2^6}{3^6}\implies x=\cfrac{64}{729}$

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erastovalidia [21]

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2 years ago

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Otrada [13]

Answer:

(x + 2)² + (y + 9)² = 49

Step-by-step explanation:

Equation:

(x - h)² + (y - k)² = r²

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What number should be added to 1253 to get 3000

grandymaker [24]

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2 years ago

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