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anonymous

  • one year ago

Solve for x.

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  1. anonymous
    • one year ago
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  2. zzr0ck3r
    • one year ago
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    Any ideas?

  3. zzr0ck3r
    • one year ago
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    This is a right triangle and Pythagorean theorem tells us |dw:1436843339059:dw| So you have \(5^2+8^2=x^2\). Does this make sense?

  4. zzr0ck3r
    • one year ago
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    that should say, pythagorean theorem tells us \(a^2+b^2=c^2\)

  5. UsukiDoll
    • one year ago
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    after we figure out \[5^2 \] and \[8^2 \] we need x (or c or whatever side is missing) by itself so we need to square root both sides.

  6. UsukiDoll
    • one year ago
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    ok that's the c part we're missing (the longest side of the triangle-- hypotenuse)

  7. anonymous
    • one year ago
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    5 squared + 8 squared = x squared 25 + 64 = c squared

  8. UsukiDoll
    • one year ago
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    good so far..

  9. UsukiDoll
    • one year ago
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    so what's 25+64 ?

  10. UsukiDoll
    • one year ago
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    |dw:1436843685798:dw|

  11. anonymous
    • one year ago
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    I got 89

  12. UsukiDoll
    • one year ago
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    |dw:1436843762482:dw| take the square root of both sides. we need just a c...

  13. UsukiDoll
    • one year ago
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    draw \[\sqrt{}\] on both sides you can use my drawing from above.

  14. anonymous
    • one year ago
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    idk how. how do you do that?

  15. UsukiDoll
    • one year ago
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    ok do you see that pencil on the top right hand corner of my drawing it will say "reply using drawing" click that

  16. anonymous
    • one year ago
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    ooh okay I got it

  17. UsukiDoll
    • one year ago
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    so did you figure out what c is ? hint: it should be a square root and since that number is prime...that's about it.

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