anonymous
  • anonymous
Please help will medal and fan!!!!!!!! I came across an interesting problem. Evaluate: 9 – |–9|
Mathematics
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anonymous
  • anonymous
Please help will medal and fan!!!!!!!! I came across an interesting problem. Evaluate: 9 – |–9|
Mathematics
schrodinger
  • schrodinger
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At vero eos et accusamus et iusto odio dignissimos ducimus qui blanditiis praesentium voluptatum deleniti atque corrupti quos dolores et quas molestias excepturi sint occaecati cupiditate non provident, similique sunt in culpa qui officia deserunt mollitia animi, id est laborum et dolorum fuga. Et harum quidem rerum facilis est et expedita distinctio. Nam libero tempore, cum soluta nobis est eligendi optio cumque nihil impedit quo minus id quod maxime placeat facere possimus, omnis voluptas assumenda est, omnis dolor repellendus. Itaque earum rerum hic tenetur a sapiente delectus, ut aut reiciendis voluptatibus maiores alias consequatur aut perferendis doloribus asperiores repellat.

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anonymous
  • anonymous
anonymous
  • anonymous
what is the modulus of a negative number?
anonymous
  • anonymous
we simply take the positive value inside the modulus...

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anonymous
  • anonymous
Is this supposed to be the same as 9-(-9)?
anonymous
  • anonymous
nope
anonymous
  • anonymous
modulus and brackets are different
anonymous
  • anonymous
a modulus takes the positive number inside the |..| so |-1|=1,... |-n|=n
anonymous
  • anonymous
so what would |-9| equal?
anonymous
  • anonymous
9
anonymous
  • anonymous
correct!
anonymous
  • anonymous
Is that it?
anonymous
  • anonymous
nope, so we know |-9|=9 right?
anonymous
  • anonymous
so what is 9-|-9|
anonymous
  • anonymous
Yes
anonymous
  • anonymous
9-|-9|=9-9
anonymous
  • anonymous
What do I do now?
anonymous
  • anonymous
evaluate 9-9
anonymous
  • anonymous
what is that?
anonymous
  • anonymous
0 right?
anonymous
  • anonymous
Would 9-9 be 18?
anonymous
  • anonymous
how did you get that...
anonymous
  • anonymous
all we are doing is subtracting 9 from 9
anonymous
  • anonymous
I tried to follow the rules of intergers.
anonymous
  • anonymous
Then that equals 0.
anonymous
  • anonymous
correct
anonymous
  • anonymous
Is that the answer to the whole problem?
anonymous
  • anonymous
sure is
anonymous
  • anonymous
9-|-9|=0
anonymous
  • anonymous
Well thank you, so much.
anonymous
  • anonymous
np :)

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