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Verified Answer :

texaschic101
  1. sqrt 52 = 7.211 rounds to 7

    2. irrational number

    3. sqrt 441 = 21....rational

    4. 12^2 + 3^2 = h^2
        144 + 9 = h^2
         153 = h^2
          sqrt 153 = h
          12.4 = h <===

    5. 6^2 + b^2 = 18^2
        36 + b^2 = 324
        b^2 = 324 - 36
        b^2 = 288
        b = sqrt 288
        b = 16.97 rounds to 17 <==

    6. 39^2 + 52^2 = c^2
        1521 + 2704 = c^2
        4225 = c^2
        sqrt 4225 = c
        65 = c
        (39 + 52) - 65 = 91 - 65 = 26 miles shorter <==

    7. 4^2 + b^2 = 16^2
         16 + b^2 = 256
         b^2 = 256 - 16
         b^2 = 240
         b = sqrt 240
         b = 15.49 rounds to 15.5 <==

    8. ?

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