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Posted by on Wednesday, September 15, 2010 at 12:19pm.

Solve the problem. Round to the nearest tenth, if necessary.

A long-distance runner runs 5 miles directly south and then faces due east and runs another 7 miles. How far is the runner, in a straight line, from his starting point?

  • Math - , Wednesday, September 15, 2010 at 12:24pm

    a^2 + b^2 = c^2

    5^2 + 7^2 = c^2
    25 + 49 = c^2
    74 = c^2
    8.6 = c

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