Please answer this, it's so hard.(adsbygoogle = window.adsbygoogle || []).push({});

Problem:

At 12 noon, ship A travels due west at 100 knotsshiop B. After 4hours, ship B leaves the same port on the direction N30'W at 80 knots. How fast is the distance between two ships changing at 8PM in the same day?

Reply please.I can't solve it really.

Thanks.

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# Homework Help: Related Rates Ship Distance Problem

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