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emma4113
19.11.2021 •
Mathematics
The half life of radium is 1690 years if 80 grams are present now how much will be present in 830 years?
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Ответ:
(f-g)(-4) = -151
Step-by-step explanation:
To find f-g(x) we subtract the common terms. So
(f-g)(x)
(f-g)(-4)
We replace x by -4
(f-g)(-4) = -151