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Reaper534

  • 3 years ago

Find x.

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  1. Reaper534
    • 3 years ago
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    @Mertsj

  2. Mertsj
    • 3 years ago
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    Let's get rid of the one triangle that we don't need for this one.

  3. Mertsj
    • 3 years ago
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    |dw:1359241647844:dw|

  4. Mertsj
    • 3 years ago
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    Can you solve that equation for x?

  5. Reaper534
    • 3 years ago
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    i divide 18 by 2 and get 9 then ill get 9sqrt2

  6. Mertsj
    • 3 years ago
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    \[x \sqrt{2}=18\]

  7. Mertsj
    • 3 years ago
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    Divide both sides by sqrt 2

  8. Reaper534
    • 3 years ago
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    18sqrt2/sqrt 4

  9. Mertsj
    • 3 years ago
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    \[\frac{x \sqrt{2}}{\sqrt{2}}=\frac{18}{\sqrt{2}}\]

  10. Mertsj
    • 3 years ago
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    \[x=\frac{18}{\sqrt{2}}\]

  11. Mertsj
    • 3 years ago
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    Now simplify. Multiply numerator and denominator by sqrt2

  12. Reaper534
    • 3 years ago
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    i get 18sqrt2/sqrt4 and then i get sqrt18/4

  13. Mertsj
    • 3 years ago
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    \[\frac{18}{\sqrt{2}}\times \frac{\sqrt{2}}{\sqrt{2}}=\frac{18\sqrt{2}}{2}=9\sqrt{2}\]

  14. Reaper534
    • 3 years ago
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    ohh if a sqrt in on numerator and a other on denominater i can cancell each other

  15. Mertsj
    • 3 years ago
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    no.

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