Mathematics
Grade10
Easy

Question

A car skidded m ft during a race. The expression s = square root of 8 m end root  is the rate of speed of the car in ft/s. Find the rate of the speed of the car, if the car skidded 288 ft


 

  1. 12
  2. 36
  3. 24
  4. 48

hintHint:

Speed = Distance/time.

The correct answer is: 48


    Here, we have to find the speed of a car when it skidded 288m during a race given that s = √8m.
    We have, 
    s = √8m
    => s = √(8×288)
    => s = √2304
    => s = 48 ft/s.
    Hence, the correct option is D.

     A radical expression is an expression containing a square root.

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