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10 cards from this deck
exe^xex
kektke^{kt}kekt or kQkQkQ
dQdt=kQ\frac{dQ}{dt} = kQdtdQ=kQ
Q=Q0ektQ = Q_0 e^{kt}Q=Q0ekt
Initial value at t=0t = 0t=0
dMdt=−kM\frac{dM}{dt} = -kMdtdM=−kM (kkk positive)
M=M0e−ktM = M_0 e^{-kt}M=M0e−kt
Time for exactly half of substance to remain
Use data points to create equation, solve with logarithms
Proportional to current value
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