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Mathematics 13 Online
OpenStudy (anonymous):

The formula for finding the skid marks given the rate of speed of a vehicle is L = r^2/20, where L represents the length of the skid marks in feet and r represents the speed of the vehicle in miles per hour. What is the length of the skid marks from a vehicle traveling 80 mi/h?

OpenStudy (campbell_st):

just substitute and evaluate \[L= \frac{80^2}{20}\]

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