anonymous
  • anonymous
Find x.
Mathematics
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
Find x.
Mathematics
chestercat
  • chestercat
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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
http://roads.advancedacademics.com/contentserver/content/roadssection/279450/questions/assessments/t-righttrianglespythagoreantheoremquiz/geometry_4.3_quiz_8q.gif
anonymous
  • anonymous
Mertsj
  • Mertsj
Let's get rid of the one triangle that we don't need for this one.

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Mertsj
  • Mertsj
|dw:1359241647844:dw|
Mertsj
  • Mertsj
Can you solve that equation for x?
anonymous
  • anonymous
i divide 18 by 2 and get 9 then ill get 9sqrt2
Mertsj
  • Mertsj
\[x \sqrt{2}=18\]
Mertsj
  • Mertsj
Divide both sides by sqrt 2
anonymous
  • anonymous
18sqrt2/sqrt 4
Mertsj
  • Mertsj
\[\frac{x \sqrt{2}}{\sqrt{2}}=\frac{18}{\sqrt{2}}\]
Mertsj
  • Mertsj
\[x=\frac{18}{\sqrt{2}}\]
Mertsj
  • Mertsj
Now simplify. Multiply numerator and denominator by sqrt2
anonymous
  • anonymous
i get 18sqrt2/sqrt4 and then i get sqrt18/4
Mertsj
  • Mertsj
\[\frac{18}{\sqrt{2}}\times \frac{\sqrt{2}}{\sqrt{2}}=\frac{18\sqrt{2}}{2}=9\sqrt{2}\]
anonymous
  • anonymous
ohh if a sqrt in on numerator and a other on denominater i can cancell each other
Mertsj
  • Mertsj
no.

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