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tay60 tay60
  • 28-01-2016
  • Mathematics
Answered

if r(x)=120+18x-3x^2 what is r(2)

Verified Answer :

ayah1
ayah1 ayah1
  • 28-01-2016

\(r(x)=120+18x-3x^2\)               (replace x with 2)
\(r(2)=120+18(2)-3(2)^2\)
\(r(2)=120+18(2)-3(4)\)
\(r(2)=120+36-12\)
\(r(2)=144\)
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