SOLUTION: I know this involves the pythagorean theorem but I cannot figure it out! Thanks in advance. Police use the formula s = √30fd to estimate the speed s of a car in miles per

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Question 1088745: I know this involves the pythagorean theorem but I cannot figure it out! Thanks in advance.
Police use the formula s = √30fd to estimate the speed s of a car in miles per hour, where d is the distance in feet that the car skidded and f is the coefficient of friction. If the coefficient of friction on a certain gravel road is 0.28 and a car skidded 340 feet, find the speed of the car, to the nearest mile per hour.
Answer by Fombitz(32388) About Me  (Show Source):
You can put this solution on YOUR website!
No, not the Pythagorean theorem.
Just straight substitution.
s=sqrt%2830fd%29
s=sqrt%2830%280.28%29%28340%29%29
Work that out with a calculator.
The answer is in mph.