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July 24, 2014

July 24, 2014

Posted by **Elizabeth** on Wednesday, September 26, 2012 at 1:23pm.

- Calculus -
**Steve**, Wednesday, September 26, 2012 at 3:01pmsince there are 60 minutes in an hour, the speed can be expressed as 20/60 mi/min = 1/3 mi/min

after t minutes, the distance traveled is thus t/3 miles = 1760t feet

using a right triangle, then it is clear that

d(t) = √(180^2 + (1760t)^2) feet

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