The answer is either number one or two.
Answer:A
Explanation:
Your muscular system is at work
10 seconds = 8grams
then just divide by 2 another 4 times...
= 0.5grams after 50 seconds
Given:
Half life(t^ 1/2) :30 years
A0( initial mass of the substance): 200 mg.
Now we know that
A= A0/ [2 ^ (t/√t)]
Where A is the mass that remains after t years.
A0 is the initial mass
t is the time
t^1/2 is the half life
Substituting the given values in the above equation we get
A= [200/ 2^(t/30) ] mg
Thus the mass remaining after t years is [200/ 2^(t/30) ] mg
