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urgent urgent algebra

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rewrite each in exponential expression as a logarithmic expression
a)log,x=4
b)log 5=2
c)log ,8=x

  • urgent urgent algebra - ,

    I am assuming you mean log _10 x = 4 in the equation.

    For this, log _x y = z, x^z = y

    So, x = 10^4 = 10,000 (a)

    (b) log _x 5 = 2, x^2 = 5, x = sqrt 5

    (c) i guess you meant log 10_ 8 = x so 10^x = 8

    plug this into calculator, "log 8" to get 0.903089987 etc...

    good luck

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