3x +y = –15 -3x - 4y = 30 Which variable will eliminate in the system?

Mathematics

1 answer:

Anestetic [448]2 years ago

5 0

Answer:

x should be eliminated

hope it helps

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10. simplify the rational expression by rationalizing the denominator.( 1 point ) 4√150/√189x

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$\bf \cfrac{4\sqrt{150}}{\sqrt{189x}}\cdot \cfrac{\sqrt{189x}}{\sqrt{189x}}\implies \cfrac{4\sqrt{150}\sqrt{189x}}{(\sqrt{189x})^2}\implies \cfrac{4\sqrt{(150)({189x})}}{189x}$

$\bf \cfrac{4\sqrt{28350x}}{189x}\qquad 
\begin{cases}
28350=2\cdot 3\cdot 3\cdot 3\cdot 3\cdot 5\cdot 5\cdot 7\\
\qquad 2\cdot 3^2\cdot 3^2\cdot 5^2\cdot 7\\
\qquad 2\cdot (3^2)^2\cdot 5^2\cdot 7\\
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\\\\\\
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