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Algebra
Pregunta

Certain radioactive material decays in such a way ...

Certain radioactive material decays in such a way that the mass remaining after \( t \) years is given by the function 

\( m ( t ) = 100 e ^ { - 0.01 t } \) 

where \( m ( t ) \) is measured in grams. (a) Find the mass at time \( t = 0 \) . Your answer is (b) How much of the mass remains after \( 20 \) years? Your answer is Round answers to \( 1 \) decimal place. 

Answer

At time t=0 ;mass=100 gms

 

At time t=20 ;mass=81.8 gms

Solución
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