After 3 days a sample of radon-222 has decayed to 58% of its original amount.(
1 answer:
Half-life = [elapsed time * log (2)] / [log (begng amt / endg amt)]
half-life = (3 days * 0.30102999566) / log (1 / .58)
<span>half-life = 0.903089987 / log </span>
(<span>
<span>
<span>
1.724137931)
</span></span></span>half-life = <span>0.903089987 / 0.23657200643</span>
half-life =
<span>
<span>
<span>
3.8174 days
Source:
http://www.1728.org/halflife.htm
</span></span></span>
You might be interested in
Answer: 3
Step-by-step explanation:
cause I said so :) mark brainliest pls
Answer:
welll there no like answers to give here so i dont know might want to check what you post before you post it
Step-by-step explanation:
The answer is step 3. Step 2 is suppose to be 3 x 7 and the answer is 21 but he writes 7 in step 4
Answer: y + x = ?
y - x = ?
y times x = ?
y / x = ?
Step-by-step explanation: If 1 is correct tell me, if none are, i will edit :D
Answer:
Step-by-step explanation:
7-x=-2
-x=-2-7
-x=-9
x=9
