<u>Finding the Decay constant(λ):</u>
λ = 0.693 / (half-life)
we are given that the half-life is 36 hours
λ = 0.693 / (36)
λ = 0.01925 /hour
<u>Time taken for 87% decay:</u>
Since decay is first-order, we will use the formula:
Where A₀ is the initial amount and A is the final amount
Let the initial amount be 100 mg,
the final amount will be 87% of 100
Final amount = 100*87/100 = 87 mg
<em>Replacing the values in the equation: </em>
<em />
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<em />
t = 7.18 hours
<em>We used 'hours' as the unit because the unit of the decay constant is '/hour'</em>
Therefore, the drug will decay to 87% of initial dosage after 7.18 hours
Answer: For the first one all you have to do is 11x11 and you will get 121. For number 2 do (-2)^3x(-6) and you will get 48. I hope this helps. I do suggest using a calculator tho
Step-by-step explanation:
Answer:
Step-by-step explanation:
Ask yourself, what is the value of the f(x) when
x aproaches 1 f(x) = -3
x aproaches 1.5 f(x) = -3
x aproaches 1.9 f(x) = -3
x aproaches 1.99 f(x) = -3
x aproaches 1.999999999 f(x) = -3
lim x--> 2 from the left = -3
using the same approach as x ---> 2 from the right
x aproaches 5 f(x) = 4
x aproaches 4 f(x) = 4
x aproaches 3 f(x) = 4
x aproaches 2.5 f(x) = 4
x aproaches 2.001 f(x) = 4
lim x--> 2 from the right = 4
Answer:
$7.25
Step-by-step explanation:
take how much he has currently away from how much he know has to figure out how much he spent.
30 - 22.75 = 7.25
