The mass of radioactive material remaining after 50 years would be 48.79 kilograms
<h3>How to determine the amount</h3>
It is important to note that half - life is the time it takes for the amount of a substance to reduce by half its original size.
Given the radioactive decay formula as
m(t)=120e−0.018t
Where
t= 50 years
m(t) is the remaining amount
Substitute the value of t


Find the exponential value
m(t) = 48.788399
m(t) = 48.79 kilograms to 2 decimal places
Thus, the mass of radioactive material remaining after 50 years would be 48.79 kilograms
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Answer:
y = -12
Step-by-step explanation:
-4 (8+3y) = 112
-32 -12y = 112
-12y = 144
y = -12
Answer:
-1.5
Step-by-step explanation:
8÷12 is 1.5 and 4÷12 is 3 so 1.5-3 is -1.5
Answer:
Vertical angles are pair of angles made by intersecting two lines .
Step-by-step explanation:
In the image below a° and b° are vertical angles. "Vertical" refers to the vertex (where they cross), NOT up/down