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slega [8]
3 years ago
9

Please help me - thankyou :)

Mathematics
1 answer:
olga_2 [115]3 years ago
3 0
It is 6 because 1000 would not be the appropiate answer 
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Step-by-step explanation:

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In four years, 40% of a radioactive element decays. Find its half-life. Round to one decimal place.
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Answer:

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The measures of the angles of a quadrilateral are in the
bearhunter [10]

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