F 16 G of a radioactive substance are present initially in five years later only 8G remain how much of the substance will be present after 14 year

Q: What is the doubling time for this population? What is the size for the population after 2 years?

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Q: 2. On a college campus of 5000 students, the spread of flu virus through the student is modeled 5…

A: For all students to be infected by flu Pt=5000. So:…

Q: The amount of money, A(t), in a savings account that pays 3% interest, compounded quarterly for t ye…

A: Here is the solution:

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Q: Human hair from a grave in Africa proved to have only 65% of the carbon 14 of living tissue. When…

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Q: 5. The amount of a certain drug in a persons blood t minutes after admin- istering the drug is given…

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Q: 3. A bowl of warm soup with temperature 58°C is left in dining room. The temperature of the dining…

A: Given:- 3. A bowl of warm soup with temperature 58°C is left in dining room. The temperature of the…

Q: 45e0.2€ where t is time in years since 1970, and f(t) is people in thousands. How many people are…

A: Till 1979, there was a span of 9 years in between 1970 and 1979. So, to calculate the number of…

Q: 12 A small town in South Africa has an annual population growth rate of e10* – 2x people. If x…

A: According to question,Given annual population groth rate of e1210x-2x,

Q: In the year 2000, the population of a small city was 43,000. The population grows at a rate of r(t)…

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Q: Ken68 has $260,000 and his investment goal is to have it accumulate to $287,000. Ken68 is going to…

A: In this question we have to find time to achieve his investment goal.

Q: In the year 2000, the population of a small city was 48,000. The population grows at a rate of r(t)…

A: Follow the procedure given below.

Q: A small population of rabbits is introduced to an island. The number of rabbits t months after their…

A: since we have t is in a month and we want to know the population in one year hence substitute t=12

Q: Q.1) a) If the temperature of air is 30 °C & a substance cools from 100 °C to 70 °C in 15 minutes,…

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Q: elapsed time in seconds. ure 1) re 1 of 1

A: We need to find distance and acceleration

Q: The doubling period of a bacterial population is 15 minutes. At time t = 110 minutes, the bacterial…

A:

Q: A population is growing according to P=Psubscript0•e^0.25t. Find the doubling time.

A: A population is growing according to P=P0e0.25t. To Find the doubling time.

Q: Neptunium-237 has a half-life of 2.1 million years. The amount N of 400 kilograms of neptunium-237…

A: Given: Neptunium-237 has a half-life of 2.1 million years. The amount N of 400 kilograms of…

Q: 100(0.99997) P = How much plutonium is present after (a) 5,000 years? (b) 10,000 years? (c) 20,000…

A: Given: The amount P(in grams) of the Plutonium present after t years is given by the equation:…

Q: A dorm at a college houses 1400 students. One day, 20 of the students become ill with the flu, which…

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Q: 4.An analyst studying the population of a town determines that the population can be modeled by the…

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Q: ony observed that a small colony of penguins obeys the population growth law. There were 1000…

A: we know that population growth formula. A=Pertwhere P is initial population,e is irrartional…

Q: 2. You have bought a car for $50,000. You were so excited. However, you then found out that the car…

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Q: The spread of a flu virus through a certain population is modeled by 1000 y 1+ 990e-0.7 where y is…

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Q: How long will it take for the city to double its population? * When the population growth of a…

A: Here given initial population of city was 22000 and population grows with respect to time by a…

Q: The bacteria population in a bottle at time t (in hours) has size P (t) = 1 OOOe0.35t. After how…

A: Population of bacteria in a bottle at time t (in hours) is given as Pt=1000e0.35t We have to find…

Q: 1) The Dow Jones index is a stock market index for the New York Stock Exchange. The Dow Jones index…

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

Q: Example 19. A lamp lighter has to light 100 gas lamps. He takes 1½ minutes to go from one lamp post…

A:

Q: estion A radioactive substance decays according to the equation N = 45 e-0.0204 f where Nis the…

A: Given that  N=45e^(-0.0204t) To find the how long will it take for only 10 grams of the substance to…

Q: The population of a city is 0.08t P(t) = 9eº (in millions), where t is measured in (a) Calculate the…

A: We have given P(t) =9e0.08tfor initial population(t=0) we getP0 =9e0 =9 millionsNow(a) after…

Q: years is given by A(x) = 200e~173x . a. How many grams of Austinite are left in a musicians bone…

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Q: Brianna invests $2200 in a mutual fund that averages 3.9% growth per year. The amount of money in…

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Q: 1250e0.14t, In how many years will thế A population of bacteria is growing according to the equation…

A: Given: The population of the bacteria is growing according to the equation  P(t)=1250e0.14t we have…

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Q: The formula A = 10e-0.003t models the population of Hungary, A, in millions, t years after 2006. a.…

A: Given data: The formula for models the population of Hungary in 2016 is given by A=10e-0.003t…

Q: N(t)=2*10^6t is the number of bacteria in a population after t days   how many bacteria was in the…

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Q: 3. A bar of iron, previously heated to 1200°C, is cooled in a large bath of water maintained at a…

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Q: A rare species of insect was discovered in the rain forest of Costa Rica. Environmentalists…

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Q: An = a1+ d(n – 1) A cell phone plan costs $50 for the first month. Each month after that, the plan…

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Q: (b)If P = 1250 (1+x) n represent the present value of a sum of money deposited in n years at an…

A: The given function is: P=1250(1+x)n,Where, P is present value of a sum of money, n is number of year…

Q: In the food industry, a quantity called decimal time is used instead of half-life. The decimal time…

A: Solved below

Q: S − 1.3x =5.1 gives the amount of sales SS of statin in billions of dollars xx years after 1998.…

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Q: 4) A pie comes out of the oven at 275°F and is placed to cool in a 70°F kitchen. The temperature of…

A: We have been given the equation  T=70+205e-0.018t

Q: A certain species of insect was transplanted to a new environment. The population P of the insect t…

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Q: Maggie invests $1400 in a mutual fund that averages 3% growth per year. The amount of money in the…

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Q: A certain plant grows of an inch for 4 1 of the year. At this rate, how 2 many years will it take…

A: Given that 34 inches grows for 12 of the years Therefore 1 inch grows  for  1234=12×43=23 years…

Q: A dorm at a college houses 1800 students. One day, 20 of the students become ill with the flu, which…

A: Given that a dorm of a college has 1800 students out of which 20 of the students become ill. The…

Q: The fish population in a certain lake rises and falls according to the formula F = 9000(30 + 19t −…

A: On January 1, 2003, t=0  For t=0, F= 9000(30)=270,000 a) We have F=270,000 we have to find t After…

Q: A population of fish doubles every four months.  a) After 8 months, the population will be how many…

A:

Q: -0.0204 t where Nis the number of grams remaining after t A radioactive substance decays according…

A: Given that                                                  N=45e-0.0204 t where N is number of…