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Mathematics 9 Online
OpenStudy (anonymous):

Related Rates The sailor sails his boat at a constant speed of 12km/h staying 4km from and parallel to a straignt shoreline. How fast is the boat approaching a lighthouse on shore where boat 5km from the lighthouse?

OpenStudy (loser66):

pic?

OpenStudy (anonymous):

|dw:1433040585514:dw| I'm not sure though...

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