3 years ago

Can a triangle be formed with the sides lengths of 7 cm, 2 cm and 9 cm

1 answer:

Archy [21]3 years ago

6 0

Answer:IDK

Step-by-step explanation:

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nadya68 [22]

x+(2x-4)=11

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3 years ago

Dahasolnce [82]

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2 years ago

laila [671]

It's a quadratic equation in disguise. If you let $y=x^{-1}$ , then $y^2=x^{-2}$ , and we can rewrite the equation as

$5y^2-17y+6=0$

Solve for $y$ however you like; we get $y=\dfrac25$ and $y=3$ .

But we want to solve for $x$ , so we have

$y=x^{-1}=\dfrac25\implies x=\dfrac52$

$y=x^{-1}=3\implies x=\dfrac13$

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4 years ago