
2) 5.625 mg will be left
Explanation:
1) Half-life = 17.5 days
initial amount of Arsenic-74 = 90 mg
To get the equation, we will use the equation of half-life:


2) we need to find the remaining amount of Arsenic-74 after 70 days
t = 70

So after 70 days, 5.625 mg will be left
Answer:
Step-by-step explanation:
-2 = 17
You need find what number that need to be in the blank spot
17 + 2 = 19
19 - 2 = 17
In the second question u need to find equal number
17 - 3 = 16 - 2
14 14
They need to be equal - =
19 - 6 = 18 - 5
13 13
Answer:
3 terms
Step-by-step explanation:
5
- 2p + 3r
It has 3 terms
They are as follows:
5
-2p
and 3r
Hope this helps
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Because the cos theta < 0 then theta must be an obtuse angle
so a^2 + b^2 < a^2
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