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OpenStudy (anonymous):
The formula r=2sqrt 5L can be used to approximate the speed r, in miles per hour, of a car that has left skid marks of length L, in feel. How far will the car skid at 20 mph?
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OpenStudy (anonymous):
20=2sqrt5L Now solve for L
OpenStudy (anonymous):
L should be 20 miles
OpenStudy (anonymous):
so 5*20 which =100? so 100 ft?
OpenStudy (anonymous):
Yeap!
OpenStudy (anonymous):
sweet! Thanks :)
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