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janayshas84
25.01.2021 •
Mathematics
Please work out A and B and i will give the brainliest for both perimeter and area.
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Ответ:
a. p=21 a=336. b p=24.7 a=1038.0846
Ответ:
I think this is correct but im not sure..
Step-by-step explanation:
12 days is 3 half-lives ... so, 1/8 initial ... (1/2)^3 = 1/8
... initial is 8 mg
4 weeks is 7 half-lives ... 8 mg * (1/2)^7 = ?