ALGEBRA

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The half-life of 234U, uranium-234, is 2.52 multiplied by 105 yr. If 98.3% of the uranium in the original sample is present, what length of time (to the nearest thousand years) has elapsed?

=

  • ALGEBRA -

    .983 = 2^(-t / 2.52*10^5)
    t = 6233

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