Answer:
The substance half-life is of 4.98 days.
Step-by-step explanation:
Equation for an amount of a decaying substance:
The equation for the amount of a substance that decay exponentially has the following format:

In which k is the decay rate, as a decimal.
k-value of 0.1392.
This means that:

Find the substance's half life, in days.
This is t for which
. So







The substance half-life is of 4.98 days.
The answer is c, or 3b+6!!
Answer:
8
Step-by-step explanation:
Answer:
ABC is similar to DEF
ABC is similar to DFE
Step-by-step explanation:
<span>3•(x•y)=(3•x)•y
</span>
answer
associative property of multiplication