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Mathematics 21 Online
OpenStudy (anonymous):

Please help?

OpenStudy (anonymous):

OpenStudy (anonymous):

Sorry I dont know that one

OpenStudy (anonymous):

Decay

OpenStudy (anonymous):

I know it's decay, it decays over time. I mean, can you explain why it would have 125 gram of the radioactive material will be left after 90 years.

OpenStudy (anonymous):

@mathmale

OpenStudy (anonymous):

because you line up the x and y axises

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