Mathematics

Question

u(x)=−5x+5
w(x)=5x-3
Find the value of u(w(5))

1 Answer

  • u(w(x))=-5(5x-3)+5

    u(w(x))=-25x+15+5

    u(w(x))=-25x+20 so

    u(w(5))=-25(5)+20

    u(w(5))=-125+20

    u(w(5))=-105

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