Answer:
-√(1 - 2x) + C
Step-by-step explanation:
1/√(1-2x)
We want to integrate it. Thus;
∫1/√(1 - 2x) dx
Let u = 1 - 2x
Thus;
du/dx = -2
Thus, dx = -½du
Thus,we now have;
-½∫1/√(u) du
By application of power rule, we will now have;
-½∫1/√(u) du = -√(u) + C
Plugging in the value of u, we will have;
-√(1 - 2x) + C
The mass of substance left after 7 days is 13.09 g
The mass of substance left, N is given by
N = N₀exp(-λt) where λ = decay constant and N₀ = initial mass of substance present = 24 g and t = time
Also, λ = 0.693/t' where t' = half-life of iodine = 8 days
So, λ = 0.693/t'
λ = 0.693/8
λ = 0.086625/day
Since the mass of substance left is N = N₀exp(-λt) and we require the mass of substance after t = 7 days,
N = N₀exp(-λt)
N = 24 gexp(-0.086625/day × 7 days)
N = 24 gexp(-0.606375)
N = 24 g × 0.5453
N = 13.09 g
So, the mass of substance left after 7 days is 13.09 g
Learn more about radioactive decay here:
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18 + 10(8)
98
The answer to this is 98
The real world example for the absolute value are to express the change in balance of account.
How to use absolute value in real world problem?
Absolute value in real world problem is used to express the change or variation from one point to another point. In the absolute value, the sign of the number is not consideredd.
Let a real world example-
- Everyone is going with 20 km/h and a person x is going with 15 km/h.
- The person x has most likely to get the token as the difference between his speed and public speed is 5 km/h.
- The sign of the number is not considered, whether it is +5 or -5 it is the difference of 5 km/h.
- The number line for this absolute value is plotted below.
The real world example for the absolute value are to express the change in balance of account.
Learn more about absolute value in real world problem here:
brainly.com/question/2235065
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