Answer:
9 and 10
Explanation:
To work this out, you can either evaluate
or find the 2 closest perfect squares to 89.
With the second method, the 2 closest perfect squares are 81 and 100, otherwise known as 9² and 10². This means
is between 9 and 10.
With the first method, the result is 9.4339811320... which is between 9 and 10.
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