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11Alexandr11 [23.1K]
2 years ago
10

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

Mathematics
1 answer:
tresset_1 [31]2 years ago
3 0

Answer:

|-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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