The correct option is D 85.714 6 ÷√(0.0049) = 6 ÷√(4910000) = 6 ÷7100 = 6÷ 0.07 = 85.714 ...

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Finding Square Root through Prime Factorisation

6÷√ 0.0049

Question

$6 \div \sqrt{0.0049}$

1.285

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85.714

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12.85

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Solution

The correct option is D 85.714
$6 \div \sqrt{0.0049}$
$= 6 \div \sqrt{\frac{49}{10000}}$
$= 6 \div \frac{7}{100}$
$= 6 \div 0.07$
$= 85.714$

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