Two Boats Leave the Same Port at the Same Time

question 40

Multiple Choice

Two boats leave the same port at the same time, with boat A traveling north at 20 knots (nautical miles per hour) and boat B traveling east at 40 knots. How fast is the distance between them changing when boat A is 4 nautical miles from port? Round your answer to two decimal places. ​

• A)The distance between the boats is changing at the rate of 35.78 knots.
• B)The distance between the boats is changing at the rate of 13.42 knots.
• C)The distance between the boats is changing at the rate of 44.72 knots.
• D)The distance between the boats is changing at the rate of 38.01 knots.
• E)The distance between the boats is changing at the rate of 100.00 knots.

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