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IgorLugansk [536]
3 years ago
9

Help plz i give brainiest

Mathematics
2 answers:
dybincka [34]3 years ago
7 0

Answer:

a) 5²/4². b) 4.2²/2.8²

This is your answer ☺️☺️

Ronch [10]3 years ago
3 0
<h3>Answer:</h3>

a. \frac{5}{4}

b. \frac{3}{2} or 1\frac{1}{2}

<h2>Steps:</h2><h3><u>For a.)</u></h3>
  • Apply radical rule: \sqrt[n]{\frac{a}{b} }  =\frac{\sqrt[n]{a}}{\sqrt[n]{b} }, assuming a\geq 0,b\geq 0

  • = \frac{\sqrt{25} }{\sqrt{16} }

\sqrt{16}=4

\frac{\sqrt{25} }{4}

\sqrt{25} =5

=\frac{5}{4}

<h3><u>For b.)</u></h3>
  • \frac{\sqrt{18} }{\sqrt{8} }

  1. Apply radical rule: \frac{\sqrt{a} }{\sqrt{b} } =\sqrt{\frac{a}{b} }

  • Which means\frac{\sqrt{18} }{\sqrt{8} }=\sqrt{\frac{18}{8} }

=\sqrt{\frac{18}{8} }

2. Cancel \frac{18}{8}: \frac{9}{4}

= \sqrt{\frac{9}{4} }

Now apply the radical rule: \sqrt[n]{\frac{a}{b} } =\frac{\sqrt[n]{a} }{\sqrt[n]{b} }  assuming a\geq 0,b\geq 0

  • = \frac{\sqrt{9} }{\sqrt{4} }
<h2 />

\sqrt{4}=2

=\frac{\sqrt{9} }{2}

\sqrt{9}=3

The final answer for b.) should be \frac{3}{2}

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