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anonymous

  • 5 years ago

which of the following expressions has a value of 27? a.-[12-53+14] b.[12-53+14] c.[12]+[-53]+[14] d.[-12]-[53]-[-14]

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  1. anonymous
    • 5 years ago
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    which one would you expect to be an answer?

  2. anonymous
    • 5 years ago
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    - (12-53+14) is your solution. jump the negative into the box and you get -12-53+14 and when you do the addiction and subtractions. You will get your solution of positive 27.

  3. radar
    • 5 years ago
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    The answer is correct but the explanation of jumping the negative into the box had an error in the results. You get -12+53-14 Note the differtence in the signs

  4. anonymous
    • 5 years ago
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    I change that solution! actually the solution is D. because if you add -14 plus positive 53 you'll get postive 41 and then subtract -14 from that. you will get your solution of postive 27.

  5. radar
    • 5 years ago
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    Choice D gives a result of -51.

  6. anonymous
    • 5 years ago
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    Guys the answer is clearly B... [12-53+14] resolving this we get [-27] and gets out of a module as 27.

  7. anonymous
    • 5 years ago
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    The answer is a) -(-27) which is 27.

  8. anonymous
    • 5 years ago
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    OT.. its not -(-27) but -[-27]... -[-27] = -27 as far as i know.

  9. anonymous
    • 5 years ago
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    Your solution is D.

  10. radar
    • 5 years ago
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    Cutie0430 Look closely at choice a. Think of that - sign to the left as a -1 then it would look like this: -1(12-53+14) This means when you clear the parenthesis you are simply multplying each number by a -1. Remember the rule of multiplying bhy signs -*_ =+ +*- = - so you get -12+53-14 when you combine the -12 and -14 you get -26 now combine that with the +53 you will get the result you are looking for

  11. anonymous
    • 5 years ago
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    Radar () and [] are not the same things. One is paranthesis one is module and they operate differently as well. (-1) = -1 but [-1] = 1

  12. radar
    • 5 years ago
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    Are you thinking of the |-1| =1 absolute value indicator?

  13. anonymous
    • 5 years ago
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    i believe thats what she meant. otherwise why not just use parentheses? Well i might be wrong.

  14. radar
    • 5 years ago
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    I don't know what level Cutie is operating at. I will research the term "module" and the symbol [].. I have been wrong many times and this may be one of those times LOL

  15. anonymous
    • 5 years ago
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    hahahha... :)) by module i do mean absolute value indicator. :))) Thats what we have seen back in high school and it was soviet education system :))) however |x| is correct version. you are right about that.

  16. radar
    • 5 years ago
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    Thanks Balash, for the clarification. Good luck with your studies.

  17. anonymous
    • 5 years ago
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    Thanks Radar. No problem... and about that good luck... Thats the thing i need the most right now. Check this out if you have a little time. www.giveforward.com/saveaneducation

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