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xnadertheking
xnadertheking
30.07.2020 • 
Mathematics

HELP- The decay of a radioactive substance is modelled by a geometric sequence H(n) = Irn-1, where H(n) is the amount left of the substance at time n, in
months, r is the rate of decay, and I is the initial amount of the substance.
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If the initial amount of a radioactive substance is 150 000 g, and it decays, losing 1%
of its mass per month, then how much of the substance is left at the end of year 4?

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