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How can an isotope like carbon 14 be used to date dead organisms
asked
Mar 25, 2017
Chemistry
middle-school
1
answer
2
votes
233k
views
What is the value of a in the equation 5a-10b=45 when b=3
asked
Mar 13, 2017
Mathematics
high-school
1
answer
4
votes
36.5k
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