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anonymous

  • one year ago

A carpenter is framing a wall that is 8 feet high and 15 feet long. If the carpenter wants to be sure that the sides of the wall meet at right angles, then what should the diagonal measurement of the wall be? A.) 13 feet B.) 17 feet C.) 19 feet

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  1. AbdullahM
    • one year ago
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    Hi

  2. AbdullahM
    • one year ago
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    What is the Pythagorean theorem?

  3. anonymous
    • one year ago
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    a(squared+b(squared)= c(squared)

  4. AbdullahM
    • one year ago
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    |dw:1435340051091:dw| Use it to solve for x

  5. anonymous
    • one year ago
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    i got 161

  6. AbdullahM
    • one year ago
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    how?

  7. anonymous
    • one year ago
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    i did |dw:1435340363208:dw|

  8. phi
    • one year ago
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    don't subtract 64 just add the two numbers

  9. phi
    • one year ago
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    64+225= c^2 add the numbers

  10. anonymous
    • one year ago
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    when i added 64+225 i got 289

  11. phi
    • one year ago
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    yes, that means c^2 = 289 people "get rid of the square" by "taking the square root" of both sides

  12. anonymous
    • one year ago
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    i got 17

  13. AbdullahM
    • one year ago
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    and that's your answer

  14. phi
    • one year ago
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    in other words, we do \[ \sqrt{c^2} = \sqrt{289} \] on the left, you get c on the right you get 17 c= 17

  15. phi
    • one year ago
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    btw, when you did -64 , you have to do that to *both sides*, like this 64 + 225 - 64 = c^2 - 64 but that is "legal" but not useful. as you see, adding 64+225 to get one number is the way to solve the problem

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