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AdamBaker

  • 3 years ago

Two tugboats that are a = 130 ft apart pull a barge, as shown. If the length of one cable is b = 218 ft and the length of the other is c = 230 ft, find the angle formed by the two cables.

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  1. Hero
    • 3 years ago
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    |dw:1354844479801:dw|

  2. Hero
    • 3 years ago
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    Use law of cosines

  3. AdamBaker
    • 3 years ago
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    yea i know i have to use law of cosines but i forgot my book in school and google confused me. do you mind if u solve it for me please

  4. AdamBaker
    • 3 years ago
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    do you perhaps happen to know the formula i should use

  5. Hero
    • 3 years ago
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    \[a^2 = b^2 + c^2 - \sqrt{2bc \cos A}\]

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