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Homework Help: Related Rates (differentiating)

  1. Apr 10, 2008 #1
    1. The problem statement, all variables and given/known data
    How fast is the area of a square increasing when the side is 3 meters in length and growing at a rate of 0.8meter/minute?


    2. Relevant equations
    SA=LW
    L=3
    dL/dt=0.8

    3. The attempt at a solution

    I have no clue how to start this and I'm bad at word problems.
     
  2. jcsd
  3. Apr 10, 2008 #2
    Wrong formula, find the correct formula and we'll proceed.
     
  4. Apr 10, 2008 #3

    Dick

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    It's not really wrong, if it's square then just set W=L. So SA=L^2. Now we can proceed, right?
     
  5. Apr 11, 2008 #4
    Eh, I can somewhat agree ... but I still assume OP didn't realize W=L :p (noticing in the post, L=3)
     
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