Katieeminchh5438 Katieeminchh5438
  • 04-07-2017
  • Mathematics
contestada

A(r) is a function that gives area of a circle with radius r. It can be written in equation form as A(r)=3.14r to the secon dpower what is the value of A(4)

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IceCream41714 IceCream41714
  • 04-07-2017
this is a common circle area question. just plug 4 wherever r and solve. in this case, A(4)= (3.14)(4)^2. type this into a calculator, (but use the actual pi button to get the best results) and you get 50.26548246 .
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