I42. Carbon Dating. Recently, while digging in ChacoCanyon, New Mexico, archaeologists found cornpollen that was 4000 years old (Source: AmericanAnthropologist). This was evidence that NativeAmericans had been cultivating crops in the Southwestcenturies earlier than scientists had thought. Whatpercent of the carbon-14 had been lost from thepollen?

Answered: Image /qna-images/answer/3e10d1cf-9f89-4daf-bd28-9f04adb13d81.jpg

Answered: Carbon Dating. Recently, while digging…

Advanced Engineering Mathematics

10th Edition

ISBN:9780470458365

Author:Erwin Kreyszig

Publisher:Erwin Kreyszig

Chapter2: Second-order Linear Odes

Section: Chapter Questions

Problem 1RQ

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4. The town of Allen had a population of 32,000 in 2000, and has been growing at 2.2% per year. The town of Berry had a population of 45,500 in 2000, and a population of 49,000 in 2010.
QUESTION 5 5 points Save Answ Exams are approaching and Helen is allocating time to studying for exams. She plays for the very successful women's lacrosse team and must schedule her studying around lacrosse practices and play-off games. She thinks that with the appropriate preparation, she has a 70% chance of getting an A in Marketing. She also believes that this chance will decrease to 60% if the lacrosse team makes the play-offs. Are getting an A on the exam and being in the lacrosse play-offs independent events? Show evidence of your response. For the toolbar, press ALT+F10 (PC) or ALT+FN+F10 (Mac). I A V *G白CQ ... Paragraph Arial 14px x? X, - +, 田ン田田用区 Ť (1} | 四@ מ
Tests of an artifact discovered at the Debert site in Nova Scotia show that 25% of the original 14 C is still present. What is the probable age of the artifact? (Use r = –1.20968 * 10-4 )
Please don't provide hand writttin solution....
There are 100,000 students, staff, and faculty with an account at ASU, and when the virus was discovered, there were already 1000 accounts infected and 2000 account recovered from the virus. From the data of the first hours of the virus spreading through the system, we know that a = 0.001% and it takes 10 hours for an account to recover. See textbook for formulas. What is the value of RO? How many accounts need to be vaccinated to avoid an epidemic (users need to install a patch on their computer)? Round to the nearest percentage and do not include the % symbol (Example: if the answer is 82%, type 82 into the box below). %
2.) A new building has used 18 tons of cement and is only 30% built. At this rate, how many tons of cement will the building use when the building is completed? y bio
7.2.1
Can you answer question 5 and 7 only
Due to the large number of human tourists and a declining food supply, the blue-footed booby population in the Galapagos Islands is decreasing with a half life of about 13.7 years. a. What fraction of the booby population will remain in 10 years? b. If there are currently only 6,500 blue-footed boobies alive, how many would we expect there to be in 2047?
The price of oil was steadily increasing by 3% a year for a 10-year period. The cause was general inflation and the effect was increasing prices. There was a 40% spike in the price of oil during the spring and summer of 2006. What could have been a hidden variable that caused this jump in prices? O a) the 2006 election O b) the age of the drilling platforms c) a volcano in the South Pacific O d) hurricanes in the Gulf of Mexico
The figure below is a time-series graph showing overall death rates (from all causes) in a country for 1900 to 2015. The spike in 1919 was due to a worldwide epidemic of influenza. Write a few sentences summarizing the overall trend, describing how much the death rate changed over this period of time and putting the 1919 spike into context in terms of its impact on the population. Death Rate per 1000 Population 20 15 10 5 L ul lu luulu l luulul 1900 1910 1920 1930 1940 1950 1960 1970 1980 1990 2000 2010 2020 Year Choose the correct answer below. O A. The death rates have increased by about 30% since the 1920s. The death rate during the influenza epidemic was about half of its current rate. O B. The death rates have decreased by about 50% since the 1920s. The death rate during the influenza epidemic was over four times its current rate. C. The death rates have decreased by about 50% since the 1920s. The death rate during the influenza epidemic was about half of its current rate. O D.…
Suppose a population grows at each of the following annual rates. Find the time it would take for the population to double. a. 3% b. 6% c. 8%

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