Please im stuck help me !!!!!!!!

1 answer:

pogonyaev3 years ago

4 0

Answer:

$\frac{21}{ \sqrt{7} } \times \frac{ \sqrt{7} }{ \sqrt{7} } = \frac{21 \sqrt{7} }{7} = \frac{7(3 \sqrt{7} )}{7} \\ \\ = 3 \sqrt{7} = 7.93$

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