The half-life of the element is 13 minutes, which means after 13 minutes, any starting amount decays to half. So element X decays with a rate k such that
Solve for k :
Now, we solve for t such that
Answer:
2.5x10-14
Step-by-step explanation:
0.0000254=2.54*10^-5
0.0000035=3.5*10^-5
0.000255=2.55*10^-4
multiplying them all because volume is equals to
l*b*h
which gives
2.26695×10^-14
The equivalent is 3/4. It’s reduced.
Answers;
it would be the second one
Step-by-step explanation:
hope this helps
D because the top and the bottom are faces and the middle is a face