0.1173.
![Mathematics](/tpl/images/cats/mat.png)
Mathematics, 14.04.2021 20:00, shadowsnake
A 31 gram sample of a substance that's a
by-product of fireworks has a k-value of
0.1173.
N = Noe
-kt
No = initial mass (at time t = 0)
N = mass at time t
k = a positive constant that depends on
the substance itself and on the units
used to measure time
t = time, in day
Find the substances half-life in days round answer to nearest tenth
![answer](/tpl/images/cats/otvet.png)
Answers: 3
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Do you know the correct answer?
A 31 gram sample of a substance that's a
by-product of fireworks has a k-value of
0.1173.
0.1173.
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