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The mass (in grams) of a radioactive substance over time is modeled by the function \(M\) defined on \([0, +\infty[\) by:$$M(t) = 50e^{-0.012t}$$where \(t\) represents the time in days after the initial observation.
Determine the initial mass of the substance.
Determine the mass remaining after 10 days. Round your answer to the nearest hundredth.
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