a) a sample of iodine-131 has a weight of 3 mg and a half life of approximately 8 days.  how much of the sample will remain after each number of days? match the correct amount of the sample to the time in days

Q: 18. Suppose you are the thirtieth person in line to renew your driver's license at the Department of…

A: Note:- As you mention help in 18 a) so i am solving this you can see its soluton below.

Q: 9) Suppose a culture of bacteria starts with 60 bacteria and grows to 500 bacteria in 6 hours. Find…

A: ,

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A: In each half life , amount becomes half of the previous one. It means that, after each half life the…

Q: Suppose that in any given year the number of cases of a disease is reduced by 20%. If there are…

A: To Determine: Suppose that in any given year the number of cases of a disease is reduced by 20%. If…

Q: A certain type of bacteria has a doubling time of 25 minutes. If we start with a colony of 10, 000…

A: Formula for doubling time is as below : where, N0=initial value = 10000t = time td=doubling time =…

Q: Assume a substance has a half-life of 10 years and the initial amount is 131 grams. How much remains…

A:

Q: Solve for a, b, and c. Show work. 15 15 4. in

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Q: 1 1. Thirty foot-pounds of work is required to stretch a spring foot past its natural length. How…

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Q: An element with mass 140 grams decays by 21.6% per minute. How much of the element is remaining…

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Q: A bacteria population grows by 10% every 3 days. Based on this, if we initially have 2,000…

A: First of all we should know that the growth is exponential so formula will be: Nd = N0ekd where N0…

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A:

Q: In the basic EOQ model, if D = 80 per month, Co = $13, and Cc = $11 per unit per month, what is the…

A: In Economic Order Quantity(EOQ), we have to find the total inventory cost: Demand, D=80 per month…

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Q: For a given population, crude birth rate is 20 and crude death rate is 10. Immigration and…

A: Given, Doubling Time=70r where, r is population growth rate

Q: 1. A nurse gives her patient one tablet every 45 minutes. How many tablets will she need for a…

A: Note: We’ll answer the first question since the exact one wasn’t specified. Please submit a new…

Q: 1. If 25% of a radioactive substance disappeared in 10 years, how long did it take for 60% of the…

A:

Q: The half-life of carbon-14, 14C, is approximately 5,730 years. A bone fragment is estimated to have…

A: Given information: Initial amount=Q0=7 mgHalf life=t12=5730 years

Q: A sample of radium has a weight of 1.5 mg and a half life of approximately 6 years. How much of the…

A: Given Data: The weight of the sample of radium is: W=1.5 mg The approximate half-life of the sample…

Q: Suppose that in any given year the number of cases can be reduced by 25% instead of 20%. a. How long…

A: Hey the given problem is solved by considering the initial number of cases to be 10000.

Q: Suppose a nuclear accident releases 50 kilograms of the element Cesium 137. If the half life of…

A:

Q: If Sandago has a present population of 70,000 and the population is increasing by 3% each year. 1.…

A: The function that models the population at time t is given by, Pt=P0ert, where P0 is the initial…

Q: 1) March 2020, a woman was said to be exactly 3 months pregnant. How many days will it take to make…

A: Since you have posted the multiple questions. I am answering the first one. Please post the question…

Q: If the population of a small city is 35,000. If the immigration laws allow population to grow by…

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Q: If 525 mg of a radioactive element decays to 450 mg in 48 hours, what is its half-life?

A: we are using model for radioactive decayN=N0e-λtwhereN0=initial amountN=The amount test of a…

Q: If 12g of a radioactive substance are present initially and 9yr later only 6g​ remain, how much of…

A: As half the amount of the radioactive substance left after 9 years, thus it is clear that half-life…

Q: A wooden artifact from an ancient tomb contains 20 percent of the carbon-14 that is present in…

A:

Q: 2. Suppose a nuclear accident releases 50 kilograms of the element Cesium 137. If the half life of…

A: Given- Intial amount of Cesium-137 is 50 kg and half life is 30 years. To find- The amount after 30…

Q: Element X decays radioactively with a half life of 9 minutes. If there are 170 grams of Element X,…

A: Given- Element X decays radioactively with a half life of 9 minutes and there are 170 grams of…

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Q: Assume a substance has a half-life of 11 years and the initial amount is 133 grams.How long will it…

A: If A0 is initial amount present and T is half -life of the substance. Then the amount of substance…

Q: A computer loses 35% of of its value each year. If the computer cost $600 new, calculate its value…

A: A computer loses 35% of of its value each year. If the computer cost $600 new, calculate its value…

Q: (i) If the present age of a girl is x years. (a) What will her age be after 7 years? (b) What was…

A: see 2nd step

Q: How much of a 102-mg sample would be remaining after 7 years? b) If the half-life were shorter than…

A: In this question, we use the application of differential equation to calculate the amount of lead…

Q: A forest whose Yield at year 11 is 520 ft3/acre and at year 12 590 ft3/acre. Indicate its CAI at…

A: CAI means the current annual increment. MAI means the mean annual increment.

Q: half life of a decaying substance is the amount of time it takes for the substance to reduced to…

A: Given query is to find the the time taken to reduced the substance to 10 mg.

Q: If Sandago has a present population of 70,000, and the population is increasing by 3% each year.…

A:

Q: 1. Suppose a culture of 300 bacteria at BIO Farm is put into Petri dish and the culture doubles…

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Q: 9. In 8 years, a girl will be three times as old as she was 4 years ago, Find her present age.

A: Topic = Algebra As per guidelines ,At a time only one question can be answered out of different…

Q: A person with a normal body temperature of 36 °C dies in an accident while traveling by car. The…

A: A person with a normal body temperature of 36 °C dies in an accident while traveling by car. The…

Q: The half life of a decaying substance is the amount of time it take for the substance to reduced to…

A:

Q: If the population of a small city is 55,000. If the immigration laws allow population to grow by…

A: Let's say P represents the population and t represents the time in year.Hence, dP / dt = 900Hence,…

Q: The IQ (intelligence quotient) is found by dividing the mental age (MA), as indicated on standard…

A:

Q: If 18g of a radioactive substance are present initially and 4 yr later only 9g​ remain, how many gs…

A: It is simple unitary method problem.

Q: 6. Determine the initial amount of radioactive substance if after 22 years, the remaining…

A:

Q: Suppose the doubling time of a population is 16 years. How long will it take for the population to…

A: NOTE: Refresh your page if you can't see any equations. . for doubling time, use the formula here…

Q: Element X decays radioactively with a half life of 9 minutes. If there are 760 grams of Element X,…

A: Formula for half life is as below : N(t)=19 gramsN0=760t = ?t12=9 minutes

Q: Question 21 David worked 38 hours last week. If the hourly rate is $13, find the gross pay?

A:

Q: Question 1 of 11, Step 1 of 1 Correct Trying to prepare a budget, Alvin has done research and found…

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Estimation

A new framework of data analysis where the new statistical methods are used for interpreting the results and analyzing the data is known as estimation in statistics.