If Sally had six balls and Mark had seven how many balls did he have in all
2 answers:
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First we must apply the Quotient rule that states,
This means that our derivative becomes,
Now we need to calculate and
From here the new equation looks like,
And that is the final result.
Hope this helps.
r3t40
Answer:
The amount of Polonium-210 left in his body after 72 days is 6.937 μg.
Step-by-step explanation:
The decay rate of Polonium-210 is the following:
(1)
Where:
N(t) is the quantity of Po-210 at time t =?
N₀ is the initial quantity of Po-210 = 10 μg
λ is the decay constant
t is the time = 72 d
The decay rate is 0.502%, hence the quantity that still remains in Alexander is 99.498%.
First, we need to find the decay constant:
(2)
Where t(1/2) is the half-life of Po-210 = 138.376 days
By entering equation (2) into (1) we have:
Therefore, the amount of Polonium-210 left in his body after 72 days is 6.937 μg.
I hope it helps you!
The answer is B. Quadrant II
Just remember this concept instead.
Just remember this concept instead.