Math

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Suppose that f(A,B,C) means A-2C + (1/2)AB

A. Find f(2,3,-11)
B. Find f(D,5,D)
C. Find f(3,4,f(-5,7,4))

  • Math -

    just do what it says...
    f(A,B,C) = A-2C + (1/2)AB
    f(2,3,-11) = 2 -2(-11) + (1/2)(2)(3)
    = 2 + 22 + 3 = 27

    f(D,5,D) = D - 2D + (1/2)(D)(5)
    = D - 2D + (5/2)D = (3/2)D or 3D/2

    for the last one,
    f(-5,7,4) = ?

    then f(3,4,? ) = ....

    you try it.

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