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louisasbery
louisasbery louisasbery
  • 31-01-2017
  • Mathematics
Answered

Please help me with this.

Please help me with this. class=

Verified Answer :

swalley2004
swalley2004 swalley2004
  • 31-01-2017

the area is then (-x+19) (-x+15)

so you use F.O.I.L to get

-x-x + 19-x + 15-x + 15*19

x^2 -19x-15x+285

the perimeter is 2(-x+19) + 2(-x+15)

you then multiply out to get
(-2x+38) + (-2x+30)

so it is -4x + 68

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