neshia4 neshia4
  • 04-06-2016
  • Mathematics
contestada

help please I'm lost I really don't know what to do

help please Im lost I really dont know what to do class=

Respuesta :

Plutonium Plutonium
  • 04-06-2016
For a) simply substitute the speed of the car into the equation to get the braking distance.
For b) rearrange the equation to solve for x by substituting the braking distance in.
Rearranged, the equation looks like this: x = √(9d)
For c) use a calculator to find the precise value of x in question b.

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