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inn [45]
3 years ago
9

Help me help me plz

Mathematics
1 answer:
andrew-mc [135]3 years ago
8 0

Answer:

??????????????????????

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All isotopes of technetium are radioactive, but they have widely varying half-lives. If an 800.0 g sample of technetium-99 decay
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4 years ago
What is 78.74/12.7 .Divide show the work
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