#### Answer

$1.1$

#### Work Step by Step

$\sqrt {1.21}$
According to the textbook, a number, $a$, is a square root of another number, $b$, if $a^2=b$. Since $1.1^2=1.21$, $1.1$ is a square root of $1.21$.

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Published by
Prentice Hall

ISBN 10:
0133500403

ISBN 13:
978-0-13350-040-0

$1.1$

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