dig contai 70 of the Carbon 14 that is n living trees. To the year, about how many years old is the artifact? C half ite ef Carbon- 14 is 5730 years)
n size every 30 How many hors tako sor the colony to
7. (0-11 points OSColA101 6.7.393. Use a graphing calculator and the following scenario. The population P of a fish farm in t years is modeled by the equation P(t) 1800 1 9e-0.8t To the nearest tenth, how long will it take for the population to reach 900? yr Additional Materials
-1 points O 14has a half-life of5730 years. A fossis found that has 28% of the. 14 found in a living sample. How old is the fossi? (Round your answer to the nearest year.)