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anonymous

  • one year ago

Which statement is true about the product /2 (3 /2+/18 A. It is rational and equal to 12. B. It is rational and equal to 18. C. It is irrational and equal to 6 + 2 /18 . D. It is irrational and equal to 3 + /18 .

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  1. anonymous
    • one year ago
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    what is the equation?

  2. anonymous
    • one year ago
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    or product? it is not so clear

  3. anonymous
    • one year ago
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    sorry lol the slashes are supposed to be square roots :)

  4. anonymous
    • one year ago
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    Okay. Let us see then. To do this question we need to know two things. What is irrational and rational, and how do we simplify rational expressions.

  5. anonymous
    • one year ago
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    So do you know what irrational and rational numbers in your case are?

  6. anonymous
    • one year ago
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    no lol and my mom only gave me 10 min to finish my hw and i still have a lot pls help as fast as you can plssss

  7. anonymous
    • one year ago
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    For example, rational number would be \[\sqrt{25} = 5\] An irrational number on the other hand would be something like\[\sqrt{2}\]

  8. anonymous
    • one year ago
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    5 more min :/

  9. anonymous
    • one year ago
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    So now to our equation. \[\sqrt{2} (3 \sqrt{2}+\sqrt{18})\] We can first simplify the 18. Do you know how?

  10. anonymous
    • one year ago
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    hello?

  11. anonymous
    • one year ago
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    no

  12. anonymous
    • one year ago
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    2 min :O

  13. anonymous
    • one year ago
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    10 secs my mom is counting down on me :/

  14. anonymous
    • one year ago
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    -_- christ. I am not going to help you by giving you only single answers. So back to our question. To simplify\[\sqrt{18}\] we break it down inside. Remember prime factorization? \[\sqrt{3\times3\times2} = \sqrt{18}\]

  15. anonymous
    • one year ago
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    based on that, 3 can be taken out, because it is square root. so now we have \[\sqrt{2}(3\sqrt{2}+3\sqrt{2})\]

  16. anonymous
    • one year ago
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    Well she is apparently not interested in learning, so i am moving on.

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