10.2 hours is equivalent to three half-lives, so after 10.2 hours, the mass of the sample would have decayed by half three times over. If one starts with 100 mg of the sample, then after three half-lives, there would be 100(0.5)³ = 12.5 mg of the sample remaining.
Thus, the correct answer choice here would be D.
The Gaia Theory was proposed. By the british.
I know the answer to your question
The answer is B. 50 feet. Also the license plate has to be clean.
Answer:
yes
Explanation:
The baby
I’m pregnant with decided to do aerobics on my lungs for two hours, our
three-year-old daughter painted the living-room couch with lipstick, the
IRS put me on hold for an hour, and I was late to a business meeting
because I was tired.
