Keyandcb22 Keyandcb22
  • 24-03-2017
  • Mathematics
contestada

A rectangular picture measuring 5 in. by 9 in. is surrounded by a frame with uniform width x. Write a quadratic function in standard form to show the combined area of the picture and fram

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irspow
irspow irspow
  • 24-03-2017
A=(5+2x)(9+2x)

A=45+10x+18x+4x^2

A=4x^2+28x+45

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JeremyB
JeremyB JeremyB
  • 24-03-2017
(x.x)-(5x9)= Combined area of the picture and frame. 
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