In recent years the population of Illinois was 12419293.What is this population after

22,455 results
  1. Math

    The population of a town in 1920 was 3500 people. The town's population decreased linearly, and in 1927 the population was 3185. Find a formula for P, the town's population, in terms of t, the number of years since 1920.

  2. MATH

    4. The population of a small town is modelled by the function p(t)= 20(4t+3)/2t+5 , where P(t) is the population, in thousands, and t is time, in years, since the start of 1990. a) Is the population currently increasing or decreasing? Justify your answer.

  3. Social Studies

    Which best describes China's economic impact on living conditions and trends? A) The standard of living has improved for more people in recent years.*** B) The standard of living has declined for a majority of the population. C) More people are becoming

  4. Math

    The population of a southern city follows the exponential law. If the population doubled in size over 13 months and the current population is 30,000 what will the population be in 5 years from now?

  5. Algebra

    I know I can use the population growth formula. here is the question; The fox population in a certain region has a relative growth rate of 7% per year. It is estimated that the population in 2005 was 19,000. (a) Find a function n(t) = n0e^rt that models

  6. math

    the population of Canadian city is modeled by P(t)= 12t^2 + 800t + 40,00, where t is the time in years. when t=0, the year is 2007 A) according to the model, what will the population be in 2020? B)in what year is the population predicted to be 300,000?

  7. math

    the population of a southern city follows the exponential law. If the population doubled in size over an 18 month period and the current population in 10000, what will be the population 2 years from now? the equation for the exponential equation is: A=ao e

  8. Math

    The population of Winnemucca Nevada can be modeled by P=6191(1.04)^t where t is the number of years since 1990. What was the population in 1990? By what percent did the population increase by each year?

  9. SAT math

    The population of a city can be modeled using the formula P=100,000e^(0.05t), where t is the number of years after 2012 and P is the city's population. Which of the following equations can be used to find the number of years after 2012 that the population

  10. math

    The population of a small town is modelled by the function p(t)= 20(4t+3)/2t+5 , where P(t) is the population, in thousands, and t is time, in years, since the start of 1990. a) Is the population currently increasing or decreasing? Justify your answer. b)

  11. math

    1. The world population in 1992 is 5.42 billion. If its population doubled every a. 41 years, what would its population be in 41 years? b. 41 years, what would its population be in 82 years? c. 82 years, what would its population be in 164 years?

  12. math

    The world population in 1992 is 5.42 billion. If its population doubled every 41 years, what would its population be in 41 years? 41 years, what would its population be in 82 years? 82 years, what would its population be in 164 years?

  13. math

    Suppose that the population of a town is described by P=0.16t^2+7.2t+100, where P is the population in thousands and t is the time in years, ( with t=o representing the year 2000). A. what will the population be in 2010? B. what was the population in 1995?

  14. Calculus

    The rate of change of the population of a small town is dP/dt=kP Where P is the population, t is the time in years and k is the growth rate. If P=20000 when t=3 and P=30000 when t=5, what is the population when t=10? Round your answer to the nearest

  15. history

    How has Mexico’s population changed in recent decades? A. Due to migration, the population has decreased. B. More people have moved from the highlands to the coasts. C. The bulk of the population has shifted from rural to urban. D. Protestants now

  16. Math1

    The population of Winnemucca, Nevada , can be modeled by P=6191(1.040^t where t is the number of years since 1990. What was the population in 1990? By what percent did the population increase by each year?

  17. Pre-Cal

    The population of Las Vegas, Nevada in 2000 was 478,000 and is increasing at the rate of 6.28% per year. At this rate, when will the population reach 1 million people? a)1.51 years b)2.32 years c)12.12 years d)10.84 years

  18. math

    suppose the population of a town increases by 3% each year. the population of the town today is 25,000. use compound interest table to find its population ten years from now. (must give the answer to the nearest thousand)

  19. Advance Functions

    The population of a small town is modeled by the function p(t)=20(4t+3)/2t+5, where P(t) is the population, in thousands, and t is time, in years, since the start of 1990. The town will need its own transit system if the population exceeds 50,000. Will the

  20. math

    The Population of a town increased by 80% in 5 years. If the population is currently 18,000, find the population of this town 5 years agao. (Round to the nearest whole, if necessary). please send formula of this equation

  21. elizabeth high school

    . An admissions director wants to estimate the mean age of all students enrolled at a college. The estimate must be within one year of the population mean. Assume the population of ages is normally distributed. Determine the minimum required sample size to

  22. Math

    The population of a city has been decreasing exponentially since 1990. In 1990, the population was 1,000,000. In 2010, the population was 560,000. If t represents time in years since 1990, which of the following equations best models the decay of the

  23. Calculus

    A population is currently 400 and growing at a rate of 6% per year. (a) Write a formula for the population P as a function of time t in years: P(t)= 400(1+.06)^t (b) If the population continues this trend, what will it be in ten years? (Round off to the

  24. aadvanced functions HELP!

    the population of a town is decreasing at a rate of 1.8% per year. The current population of the own in 12000. a)write and equation that models the population of the town b)how long will it take for the population to decline to one quarter of its current

  25. math

    the population of a town is declining at a rate of 4.1% per year. the current population is 25000. 1)what will the population be in 7 years. 2) how long will it take the population to reach 15000?

  26. MATH

    4. The population of a small town is modelled by the function p(t)= 20(4t+3)/2t+5 , where P(t) is the population, in thousands, and t is time, in years, since the start of 1990. a) Is the population currently increasing or decreasing? Justify your answer.

  27. Algebra

    Solve. The population of a particular city is increasing at a rate proportional to its size. It follows the function P(t) = 1 + ke^0.12t where k is a constant and t is the time in years. If the current population is 15,000, in how many years is the

  28. Math

    The population of a certain species of bird is limited by the type of habitat required for nesting. The population behaves according the the logistic growth model n(t)=5600/0.5+27.5e^-0.044t Where t is measured in years a) Find the initial bird population

  29. Algebra 2

    According to the US Census Bureau, the population of the United States has been growing at an average rate of approximately 2% per year. The census is taken every 10 years, and the population in 1980 was estimated at 226 million people. *If the rate of

  30. Calculus

    The rate of growth of a particular population is given by dP/dt=50t^2-100t^3/2 where P is the population size and t is the time in years. The initial population is 25,000. Find the population function. Estimate how many years it will take for the

  31. Algerba

    Pick a country of your choice that is experiencing population growth. find the most recent population count of the country you have chosen and the population growth rate of that country. Use that growth rate to approximate the population in the year 2008.

  32. HS Calculus/math

    suppose that in any given year, the population of a certain endangered species is reduce by 25%. if the population is now 7500, in how many years will the population be 4000?

  33. math

    The population of a town increases at the rate of 40 per thousand. Its population after 2 years will be 6084. Find its present population

  34. Urgent math

    please help The fox population in a certain region has a relative growth rate of 7% per year. It is estimated that the population in 2005 was 19,000. (a) Find a function n(t) = n0ert that models the population t years after 2005. n(t) = (b) Use the

  35. science

    Linear growth a. is characterized by a rapidly growing population. b. is demonstrated by the sequence 12, 13, 14, 15, 16. c. is illustrated by the numbers 2, 4, 8, 16, 32. d. is characterized by resource use and consumption. e. is characterized by a slowly

  36. Math

    A deer population was measured to be 4000. Two years later , it was measured to be 4300. assume the population grows exponentially. A). Write an equation describe this situation. Find values of all constants. b) What will the population be four years after

  37. Calculus

    Assume the population was 724 when t=0, and 4 years later it became 2334. Write a formula for the size of the population in t years: Population= What is the population when t=12

  38. math

    The population of a southern city follows the exponential law. If the population doubled in size over 28 months and the current population is 70 comma 000​, what will the population be 4 years from​ now?

  39. Precalculus

    The population of a southern city follows the exponential law. If the population doubled over 20 months and the current population is 70,000, what will the population be 5 years from now

  40. math

    In the recent century, the Belgium population grows following the logistic equation. Predict its population in 2020 given the following data: Year 1900 1950 2000 Population (mil) 6.69 8.64 10.24

  41. Science

    A population of oak trees growing in a region in Canada experiences a change in climate to much colder temperatures and much drier conditions than they have had for many decades. What determines how this population will change in the next few years?

  42. Math

    The population of a town is modelled by P=-0.1x^2+1.2x+4.4 where x is the number of years since the year 2000, and y is the population in thousands. a) In the year 2005, what is the population? I used the equation, put x=5 and I got 7900 as the

  43. pre calc

    population of city has varied considederably in recent years. the data it the relates the pollution P to time t, in years, where t=0 correponds to 1990. use a quadratic function fitted to the data to predict the population in 2000 data: year,t population P

  44. Pre-Calculus/Math

    a slow growing population of animals increases with time (years). the size of the population is given by P(t)=100+0.6t^2-0.004t^3. how fast is the population changing after 10 years?

  45. Algebra 2 help please.

    The function f(t)=2150⋅(1.04)t models the population of a town after t years. What does 2150 represent in this situation? The population increase in the town each year. The population of the town after 2 years.

  46. algerbra

    Pick a country of your choice that is experiencing population growth. Using the Library, web resources, and/or other materials to find the most recent population count of the country you have chosen and the population growth rate of that country. Use that

  47. Calculus

    The population of a county increases at a rate proportional to the existing population. If the population doubles in 20 years, then the factor of probability is a) 2e^(-30) b)1/2(ln 20) c)ln 2 d)1/20(ln 2) e)ln 20

  48. Biology

    Conservationists establish that the minimal viable population of a population of tigers in an extensive geographical area is 16. The current population of tigers is 10. What is likely to happen to the population of tigers? A. Tigers from adjoining

  49. math

    The population of Circletown has been growing at an annual rate of 5% for the last 5 years. The population is now 3104 people. What was the population of Circletown 5 years ago?

  50. algebra

    I have no clue where to begin on this problem. Can some one help me please. One demographer believes that the population growth of a certain country is best modeled by the function P (t) =15 e^.08t, while a second demographer believes that the population

  51. Population growth

    The population P of a particular city, Metropia, is growing at a rate proportional to the current population. The population at time t years is modelled by the equation P = Aekt where A and k are constants. (a) With the aid of appropriate examples, explain

  52. POPULATION

    If a population consists of 10,000 individuals at time t=0 years (P0), and the annual growth rate (excess of births over deaths) is 3% (GR), what will the population be after 1, 15 and 100 years (n)? Calculate the "doubling time" for this growth rate.

  53. algebra, math133

    Pick a country of your choice that is experiencing population growth. Using the Library, web resources, and/or other materials to find the most recent population count of the country you have chosen and the population growth rate of that country. Use that

  54. College math

    3 4 Interactive Examples 1 2 3 Question 3 The population of a country that you want to sell your product to is increasing at a rate of 5% per year. If the population is currently 7,000,000, what will be the population in 12 years?

  55. Functions, please help

    A towns' population, P(x), is given by the function P(x) =2700x + 21000 where x represents the years since 2003. The population will reach 83,400 in ______ The population in 2010 will be ______

  56. Calculus

    The rate of change of the population of a small town is dP/dt=kP, where P is the population, t is time in years and k is the growth rate. If P=20000 when t=3 and P=30000 when t=5, what is the population when t=10? Round your answer to the nearest integer.

  57. Algebra

    The fox population in a certain region has a relative growth rate of 5% per year. It is estimated that the population in 2013 was 18,000. (a) Find a function n(t) = n0ert that models the population t years after 2013. n(t) = Correct: Your answer is

  58. Math

    In recent years the population of Illinois was 12419293.What is this population after .

  59. Math

    Use the Hamilton method of Apportionment to make the assignment. In a recent census, Iowa's population in thousands was 4,503, Illinois' was 8,220, and Indiana's was 5,300. Allocate 31 members of the U.S. House of representatives to these three states.

  60. Math

    Use the Hamilton method of Apportionment to make the assignment. In a recent census, Iowa's population in thousands was 4,503, Illinois' was 8,220, and Indiana's was 5,300. Allocate 31 members of the U.S. House of representatives to these three states.

  61. math

    Suppose that the population of a town is described by P=0.16t^2=7.2t=100, where P is the population in thousands and t is the time in years, ( with t=o representing the year 2000). A. what will the population be in 2010? B. what was the population in 1995?

  62. Math/Precal

    The size of a decreasing population is given by p(t)=P0(2)^-t/7 where p(t) represents the population as time, t, in years and p0 is the initial population what percent of the original population will be there after 10 years??

  63. Math

    The size of a decreasing population is given by p(t)=P0(2)^-t/7 where p(t) represents the population as time, t, in years and p0 is the initial population what percent of the original population will be there after 10 years??

  64. Science

    A population of oak trees growing in a region in Canada experiences a change in climate to much colder temperatures and much drier conditions than they have had for many decades. What determines how this population will change in the next few years? A.

  65. math

    The population of a southern city follows the exponential law. If the population doubled in size over 15 months and then current population is 40,000, what will the population be 4 years from now?

  66. RTC

    The population of a southern city follows the exponential law. If the population doubled in size over 2929 months and the current population is 30 comma 00030,000​, what will the population be 33 years from​ now

  67. Math

    We all need help on this. The population of a town is modelled by P=-0.1x^2+1.2x+4.4 where x is the number of years since the year 2000, and y is the population in thousands. a) In the year 2005, what is the population? I used the equation, put x=5 and I

  68. college algebra

    Suppose that the Russian population is declining by 0.48% each year, and continues to decline at this rate every year. a.) what is the overall 'growth' factor (really a decline factor) for 40 years of population decline? As a percentage of the current

  69. mathematics

    a town has a population of 8400 in 1990. Fifteen years later, it's population had grown to 12 500. Assuming that the population continues to grow at the same exponential rate, when will the population reach 20 000? Please help im trying to answer this

  70. math

    The population of a distrust was 22,41,289 two years ago if the population of the village increased by 48000 in two years what is the present population.? Solve and

  71. math

    The population of a distrust was 22,41,289 two years ago if the population of the village increased by 48000 in two years what is the present population.? Solve and

  72. Algebra II

    A population growing at a rate of 1.6% per year from an initial population of 11000 will grow in t years to an amount How many years will it take the population to triple?

  73. algebra

    Pick a country of your choice that is experiencing population growth. Using the Library, web resources, and/or other materials to find the most recent population count of the country you have chosen and the population growth rate of that country. Use that

  74. Global science

    A population histogram that looks like a triangle ____. It also means A)the population is rapidly expanding. b) the population is stabilizing.C)a clumped population.d)The population is declining.

  75. TRIG

    the population of a certain city is 1.3 million people. if the population is growing at the rate of 4% per year what will the population be in 8 years

  76. Maths

    A towns population is estimated to increase by 13% per year. Population is 20,000. What will be the population in 9 years?

  77. math 115

    A city of population 2.0 million is expected to experience a 15% decrease in population every 10 years. a. What is the 10-year decay factor? What is the yearly decay factor? The yearly decay rate? b. Use part (a) to create an exponential population model

  78. Math

    The population of Circletown has been growing at an annual rate of 5% for the last 5 years. The population is now 3104 people. What was the population of Circletown 5 years ago?

  79. Statistics

    An admissions director wants to estimate the mean age of all students enrolled at a college. The estimate must be within one year of the population mean. Assume the population of ages is normally distributed. Determine the minimum required sample size to

  80. precalculus

    the population of a country is 65 millions if it grows exponentially in a rate of 1.5% annual 1.-calculate the estimate population in 12 years 2.-when the population increases 4 times could somebody please explain me this kind of problems where you need to

  81. Pleaaaaaase help with differential graph question

    Suppose further that the population’s rate of change is governed by the differential equation dP/dt = f(P) where f (P) is the function graphed. For which values of the population P does the population increase? (b) For which values of the population P

  82. math

    Hi, Can you please help me. Thank-you. The present population of a town is 42000. a) Determine the population 4 years ago if the growth rate has been a constant 4%/year. b) Determine the number of complete years that have passed since the town first had a

  83. Statistics

    Sampling Distribution of 𝒙̅ 3. A Suppose a random sample of size 80 is selected from a population with s = 8. Find the value of the standard error of the mean in each of the following cases (use the finite population correction factor if appropriate).

  84. word problem, please help

    In 1994 the moose population in a park was measured to be 6400. By 1996, the population was measured again to be 6800. If the population continues to change linearly: Find an equation for the moose population, y,in terms of x, the years since 1994.

  85. maths

    The variation in size from year to year of a particular population can be modelled by an exponential model with annual proportionate growth rate 0.1246. The size of the population at the start of the initial year is 360. Choose the TWO options that give,

  86. maths

    The variation in size from year to year of a particular population can be modelled by an exponential model with annual proportionate growth rate 0.1246. The size of the population at the start of the initial year is 360. Choose the TWO options that give,

  87. maths

    The variation in size from year to year of a particular population can be modelled by an exponential model with annual proportionate growth rate 0.1246. The size of the population at the start of the initial year is 360. Choose the TWO options that give,

  88. Math

    The intrinsic rate of increase (r) for northern elephant seals about 0.15 (per annum). We will assume that population regulation is linearly density dependent. a. If the carrying capacity of elephant seals at a recently recolonized island is 1000 adult

  89. math

    In 1980, the population of a certain country was about 161 000. since then the population has decreased about 1% per year. a. find an equation to model the population since 1980 b. estimate the population in 1990 c. suppose the current trend continues.

  90. Pre-Calcs

    Amount after time t A (t) = yobt Where: yo = starting amount b = growth constant (percent remaining) t = number of time units In the 1978 the population of blue whale in the southern hemisphere was thought to number 5000. Since whaling has been outlawed,

  91. Algebra 2

    Recursion formula for a given population for each interval,n, at a time, and k is a constant called the Malthusian factor: a_n=ka_n-1(1-a_n-1) - Assuming n is measured in weeks, calculate the insect population for weeks 2, 3, and 4 if the initial

  92. Sociology

    Can someone please help me read population pyramids for Zambia? I have to compare 3 different years and explain what's going on to the population but i don't understand how to read the population pyramid. Im having trouble understanding what the numbers

  93. Math

    A city has a population of 30,000 people. Suppose that each year the population grows by 3.7% . What will the population be after 6 years? i multiplied 30,000 by 6 then 3.7 and got 7425000 i don't think that's the answer i feel like im missing a step..

  94. PreCalc

    [b]1. The problem statement, all variables and given/known data[/b] The average growth rate of the population of a certain city is 7.5% per year. The city's population is now 22,750 people. What is the expected population in 10 years? [b]2. Relevant

  95. trig

    A population of wolves in a country is represented by the equation p(t)=80(0.98)^t, where t is the number of years since 1998. Predict the number of wolves in the population in the year 2008. how many years will it take for the population of wolves to

  96. statistics

    5) The lifetime of a medical device s a normally distributed rv with standard deviation of 2 years. An experiment is conducted to test 15 medical devices and find their lifetimes to be: a. If the population mean is known to be 15 years, what is the

  97. algebra

    A town has a population of 8400 in 1990. Fifteen years later, its population grew to 12500. Determine the average annual growth rate of this town's population. How do i solve this using applications of exponential functions?

  98. CACULUS- EXPONENTIAL GROWTH

    A population of animals in an ecological niche is growing in time so that it's rate of growth dp/dt is related to its current size by the differential equation dp/dt = 900/p^2. If time is measured in years and initially there are P(0) = 10 animals present,

  99. math

    The population of a town increases every year by 2% of the population at the beginning of that year. The number of years by which the total increase of population be 40% is:

  100. Maths

    Can you help me with this? I don't know how to figure it out. the population growing at an annual rate r will triple in a time t given by the formula t = ln 3/r If the growth rate remains constant and equals 9% per year, how long will it take the

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