Answer
5.477
Work Step by Step
25 is the closest perfect square to 30.
Let $a=5$
$y_{1}=1/2*(5+30/5)$
$y_{1}=1/2*(5+6)$
$y_{1}=1/2*11$
$y_{1}=5.5$
$y_{2}=1/2*(5.5+30/5.5)$
$y_{2}=1/2*(5.5+5.4545)$
$y_{2}=1/2*(10.954545)$
$y_{2}=5.47727$
Algebra: A Combined Approach (4th Edition)
by Martin-Gay, Elayn
Published by
Pearson
ISBN 10:
0321726391
ISBN 13:
978-0-32172-639-1
Chapter 10 - Group Activity - Heron of Alexandria - Page 741: 2
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