Answer: e); 9.2 mg
Step-by-step explanation:
Given function:
where m is the mass of a radioactive substance remaining after h half-lives.
If iron has a half-life of 2.7 years, then for iron sample of mass =200 mg ,remain after y years the equation will be
Now, to find mass remain after 12 years, substitute =12 in the equation , we get
which is equivalent to
On solving it we get,
Therefore, the correct answer is e) ; 9.2 mg
The definite integral of the given function will be .
<h3>What is integration?</h3>
Integration is defined as the summing up of the small parts to find the total value.The given function y = -x +2 will be integrated as follows:-
The limits are given as a = 0 and b = 2.
The integration will be done as:-
Therefore definite integral of the given function will be .
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Answer:
It means the absolute value of x is (equals) -10
Step-by-step explanation:
Your question is incomplete.
If you want me to tell the ratio, its 3:2