Radioactive dating is a method used to estimate the age of fossils. Evaluate (8 x 10") + (2.2 x 10®) * (1.1 x 10) to get the correct age of the fossil.

Q: Radiocarbon C14 has a half-life of 5730 years. How many years will it take for 26%of a sample of C14…

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Q: The rabbit population at the city park increases by 9% per year. If there are initially 289 rabbits…

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Q: A certain forest covers an area of 2500 km". Suppose that each year this area decreases by 5.75%.…

A: Explanation of the solution is given below...

Q: How would I find the formula for this and then estimate the population in 2023

A: detailed solution is given below

Q: The mass of caffeine in the bloodstream decreased rapidly at first, and then more slowly.

A: Given statement: The mass of caffeine in the bloodstream decreased rapidly at first, and then more…

Q: Extrapolating the Past If the number of bacteria in a culture is 5 million at the end of 6 hours and…

A: Bacteria grows at an exponential way .Pt=Poektwhen t=6 hours , P6=5 million         t=9 hours ,…

Q: In the year 2020, City A had a population of 200,000. 300 existing cases of colon cancer were…

A: GivenThe population of City A =200000The existing cases of Colon Cancer =300The number of cases…

Q: A chemical substance has a half-life of 5 hours.how much of a 82-gram sample remains after 12 hours?…

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Q: The half-life of carbon-14 is about 5730 years. a. Complete the table, which shows the amount of…

A: .

Q: The half-life of a radloactive Isotope Is the time It takes for a quantity of the isotope to be…

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Q: SYNTEX F de ELEA INTRAIND 08

A: question is not correct, its asking to write a eassy which is out of Q& A

Q: What is the mode? (Round off to one decimal place if necessary)

A: Calculate Mode from the following data1,2,2,3,3,4,4,5,6,6,7,7,7,7,8,8,8,9,9,10 mode is the value in…

Q: What does 'do not round intermediate calculations' mean?  Example: .3211

A: 'Do not round intermediate calculations' implies that, the obtained decimal value should  e rounded…

Q: A 3750-year-old wooden chest is found by archaeologists. What percentage of the original 14C would…

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Q: A certain forest covers an area of 4800 km2. Suppose that each year this area decreases by 7%. What…

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Q: What is the exact value of cse?

A: Given.

Q: In the Question it ask, The half-life of Radium-226 is 1590 years. If a sample contains 100 mg, how…

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Q: A sample of radioactive material decayed to half of its original amount in 4 years. How long did it…

A: Given: A sample of radioactive material decayed to half of its original amount in 4 years To…

Q: You find out that there were 50 new cases of T1DM reported between January 2014 and January of 2016.…

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Q: Radiocarbon dating is effective on specimens up to​ 40,000 years old. In 1951​, a nuclear chemist…

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Q: The journal article that contains the results of the study actually reports that males with epilepsy…

A: So, the second part of the question indicates the interval of confidence,This interval is taken to…

Q: A paleontologist discovers remains of animals that appear to have died at the onset of the Holocene…

A: To find the range of C14-to-C12 ratio the scientist expect to find in the animal remains.

Q: A sample of sheepskin parchment discovered by archaeologists had a C14-to-C12 ratio equal to 40% of…

A:

Q: Anaesthesia death rate is 0.4777% 0.4237% 0.2874% 0.4782% 0.5237%

A: Given : Total surgeries performed = 1692 Total anesthesia administered  = 1652

Q: he population of greater Lafayette is increasing at a rate of .95% each year. If the population was…

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Q: why can't we divide by zero epsilon-delta?

A: I have proved using epsilon delta

Q: What is the scale factor of a dilation from LMNP to DEFG? Enter your answer as a decimal in the box.

A:

Q: The frozen remains of a young Incan womanwere discovered by archeologist Johan Reinhard on Mt.…

A: The standard exponential decaying model is given as y(t)=y0e-kt. To find the value of…

Q: The mean of the population is (Round to two decimal places as needed.)

A: The population is 508, 634, 545, 611 and 577.

Q: The half-life of a radioactive isotope is the time it takes for a quantity of the isotope to be…

A: To calculate the amount of mass of after 6 half-lives if the initial amounts of radioactive isotopes…

Q: Deflation is..

A: Given, To define deflation

Q: What is the approximate population of Calcville after 12 years?

A: when t=0 ,population of Calcville is 8000 people after 12 years, the approximate population of…

Q: A tank contains 16,384 L of water At the end of each subsequent day , half of the water is removed…

A: The remaining amount of water after 1 day is 16384×12, The remaining amount of water after 2 days is…

Q: A community has a population of 76,000. A total of 3,650 deaths were reported during the past year.…

A: Given problem is : A community has a population of 76,000. A total of 3,650 deaths were reported…

Q: A certain forest covers an area of 3800 km". Suppose that each year this area decreases by 5.75%.…

A:

Q: Strontium-90 is a radioactive isotope with a half-life of 29 years. Strontium-90 is a major…

A: The half-life , T12 , is calculated using the formula, T12=ln 2λ , where, λ is the decay constant.…

Q: The ratio of carbon-14 to carbon-12 in a piece of wood discovered in a cave is  R = 1/916.  Estimate…

A: Given the data

Q: One earthquake occurred at 58° North latitude and had a magnitude of 1.4. What is the value of the…

A: The regression equation is given by y = -3.05 + 0.10x Where x = location of earthquake y = magnitude…

Q: A chemical substance has a half-life of 5 hours.How much of a 107-gram sample remains after 12…

A: In this question we have to find sample remain after 12 hour. Formula used N=N0*(1/2)^t/t1/2

Q: What is the degree of freedom for the denominator of the simple-effect Fse ratio?

A: The degrees of freedom for the F-statistic is,

Q: According to the model from part (a), what percentage increase in weight can be expected if height…

A: (b) In this part, we find the percent change in weight for given height change and used the model…

Q: An isotope has a half-life of 108 years. How much of a 16-gram sample is left after 250 years? .....…

A: The solution are next step

Q: This exercise uses elementary properties of the Richter Scale. If the relative intensity of a quake…

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Q: A particular car model depreciates 12.6 percent annually. Find the value of a $25450 car 5 years…

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Q: i) What is the estimated count after 12 hours? ii) When will bacteria count reach 52,000?

A: Given that the growth rate of bacterias= 36%= 0.36  So growth factor = 1+0.36= 1.36  Given that the…

Q: How many participants had a heart rate between 130 and 150 bpm?

A: Here use given histogram  From that note the frequency for required classes

Q: How much would you expect systolic blood pressure to change if a person commits to reducing their…

A: From the given information expect systolic blood pressure to change if a person commits to reducing…

Q: What is the positive predictive value of OraQuick, P(HIV | positive test), in this high-risk…

A: Obtain the probability of P(HIV | positive test), in this high-risk population. The probability of…

Q: A house with an original value of $160,000 increased in value to $220,000 in 5 years. What is the…

A:

Q: A sample of an isotope decayed to 77.3% of its original amount after one year. What is the half-life…

A: Radioactivity phenomena follow first kinetics: so,    Rate=kA1      k=constant by solving this…