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Mathematics 20 Online
OpenStudy (anonymous):

The speed that a car is going on a dry road when the driver puts on the breaks can be estimated by the equation s=√24d , where d is the distance that the car skids in feet. A car that was in an accident skidded 214 ft. Find the speed, in miles per hour, that a car was going before the accident occurred. Round your answer to the nearest tenth. A. 82.3. B. 71.7 C. 64.5 D. 86.4

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