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March 28, 2017

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Solve the formula for the variable given.Then use the given information to find the value of the variable.
A=2πrw
Find r if w=4ft
And A=120ft square.
Please someone help me with this!!!

  • algebra - ,

    just sub in your values

    120 = 2π(r)(4)
    120/( 8π) = r

    button pushing time!
    (I would punch in ...

    120
    ÷
    8
    ÷
    π
    =

    to get appr. 4.775

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