A dog runs at a rate of 9 feet per second and swims at a rate of 3 feet per second.  He wants to get to a ball that is floating in a lake.  The ball is 15 feet out in the lake from a point 40 feet down the beach from him, as shown.  Where should he jump in the water to swim to the ball in order to get to the ball as quickly as possible?  Round your answer to at least one decimal place.

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Q: 9. (Based on a true story.) A dog runs at a rate of 9 feet per second and swims at a rate of 3 feet…

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Q: 9. (Based on a true story.) A dog runs at a rate of 9 feet per second and swims at a rate of 3 feet…

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A: I am attaching image so that you understand each and every step.

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A: Solution:

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A: distance travelled by ship in 2 hr=26.0 mile per hour × 2 hr =52 milesθ=14° off course

Q: A freshly brewed cup of coffee has temperature 95°C in a 20°C room. When its temperature is 76°C, it…

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Q: Previous Answers 20.52 and 1568.63 were incorrect, Precalculus 2. Thank you.

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A: I am attaching image so that you understand each and every step.

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Q: A spotlight on the ground shines on a wall 12 m away. If a man 2 m tall walks from the spotlight…

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Q: The manufacturer of a medicine wants to test how a new 300-milligram capsule is released into the…

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