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1 August, 09:45

Which expression has the greatest value |-21|, |14|, |30|, |-45|

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  1. 1 August, 12:57
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    |-45|

    Step-by-step explanation:

    In mathematics, the absolute value of a real number is the numeric value of the number, regardless the sign, either this is positive or negative.

    The absolute value function can be definied as:

    |a|=a si a ≥0 |a|=-a si a <0

    Using this definition, we have:

    |-21| = - (-21) = 21

    |14| = 14

    |30| = 30

    |-45| = - (-45) = 45

    Therefore, the expression |-45| has the greatest value.
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