If the half-life is 5 minutes, then 30 minutes is equivalent to 6 half-lives. So, after six successive half-lives, the 400 mg of the radioisotope would have a mass of 400(0.5)⁶ = 6.25 mg.
Thus, A would be the correct answer choice here.
Answer:
We have four types of writing and they are:
a) Expository writing
b) Descriptive writing
c) Persuasive writing
d) Narrative writing.
Explanation:
These are the types of writing we have in <em><u>ENGLISH</u></em>.
Hope it helps.
Answer:
ok i will answers agin when done
Explanation: