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11 October, 04:08

Approximate using perfect squares what is the radical symbol 78

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  1. 11 October, 06:35
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    The correct answer is:

    The estimate is between 8 and 9.

    Explanation:

    Perfect squares are numbers whose square roots are whole numbers. 78 is not one; however, it is between two others, namely 64 and 81.

    64 is the perfect square of 8, since 8 (8) = 64.

    81 is the perfect square of 9, since 9 (9) = 81.

    78 is between these two; since it is closer to 81, this means the answer will be a decimal between 8 and 9, but that is closer to 9.
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