Mathematics, 25.01.2020 06:31, marquezbell6577
In the early 1960s, radioactive strontium-90 was released during atmospheric testing of nuclear weapons and got into the bones of people alive at the time. if the half-life of strontium-90 is 30 years, what fraction of the strontium-90 absorbed in 1963 remained in people's bones in 2004?
fraction =
Answers: 2
Mathematics, 21.06.2019 14:30, elijah1090
In each bouquet of flowers, there are 2 roses and 3 white carnations. complete the table to find how many roses and carnations there are in 2 bouquets of flowers.
Answers: 1
In the early 1960s, radioactive strontium-90 was released during atmospheric testing of nuclear weap...
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