CottonCakes
CottonCakes CottonCakes
  • 15-06-2017
  • Mathematics
contestada

Which of the following expressions is correct?
A: |-9| = |9|
B: -|-9| = |-9|
C: |-9| = -9
D: -|9| = 9

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RandomLemon
RandomLemon RandomLemon
  • 15-06-2017
A. |-9| = 9 
Because when a number is between those lines, that means it's the absolute value of that number, or number of places from 0 on a number line. 
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katebugtwin1
katebugtwin1 katebugtwin1
  • 15-06-2017
A because the absolute value of a negative number is its positive absolute value.
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