Respuesta :
Answer:
Part 1 = C. (the LAST one) /// Part 2 = 0.8 ////// Part 3 = B. (about 1,845 years)
Step-by-step explanation:
they are all correct.
Answer:
1843 years
Step-by-step explanation:
Let the number of atoms originally present be A
Let the number of atoms at time t be P(t)
P(t) = 0.8 A
Hence;
P(t)/A= 0.8A/A = 0.8
Thus the value of P(t)/A= 0.8
Since half life of C-14 = 5730 years
Age of the bone can be obtained from;
0.693/5730 = 2.303/t log (A/0.8A)
1.21 * 10^-4 = 2.303/t log(1/0.8)
1.21 * 10^-4 = 0.223/t
t = 0.223/1.21 * 10^-4
So;
t = 1843 years