SOLUTION: The formula r=2√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 feet. How far will a car skid at 70 mph?

Algebra ->  Polynomials-and-rational-expressions -> SOLUTION: The formula r=2√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 feet. How far will a car skid at 70 mph?      Log On

 

Hi,

  or    ( L in feet)

 r = 70mph   ⇒  ft