alove1777
alove1777 alove1777
  • 15-02-2018
  • Mathematics
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jennifer stands 80 ft above sea level at the top of a lighthouse. She sees a boat sailing 400 ft from the lighthouse. What is the angle of depression from the top of the lighthouse to the boat?

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djb3p47j9a djb3p47j9a
  • 15-02-2018
inv tan of 400/80 so 78.69º

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