Mathematics, 29.04.2021 04:30, mackenziann
The half-life of radium is 1690 years. If 40 grams are present now, how much will be present in 980 years?
Answers: 1
Mathematics, 21.06.2019 23:30, allisonlillian
The product of sin 30 degrees and sin 60 degrees is same as the product of
Answers: 1
The half-life of radium is 1690 years. If 40 grams are present now, how much will be present in 980...
Mathematics, 22.10.2020 21:01
Mathematics, 22.10.2020 21:01
Mathematics, 22.10.2020 21:01