wheret corresponds to the year 2000 The gross national income (GNI) of a certain country (in...
In the year 2000, the population of a certain country was 278 million with an estimated growth rate of 0.5% per year. Based on these figures, find the doubling time and project the population in 2100. Let y(t) be the population of the country, in millions, t years after the year 2000. Give the exponential growth function for this country's population. y(t) = 1 (Use integers or decimals for any numbers in the expression. Round to four decimal places as...
In the year 2000, the population of a certain country was 276 million with an estimated growth rate of 0.5% per year a. Based on these figures, find the doubling time and project the population in 2120 b Suppose the actual growth rates are ust 0.2 percentage points lower and higher than 0.5% per year 0.3% and 0.7%). What are the resulting doubling times and projected 2120 population? a. Let y(t) be the population of the country, in millions, t...
(a) Find an exponential model of the form f(t)equals=y0bt for these data, where tequals=0 corresponds to the year 2000. If you do not have suitable technology, use the first and last data points to find a function. If you have a graphing calculator or other suitable technology, use exponential regression to find a function. Death R Year The table shows the age-adjusted death rates per 100,000 citizens for heart disease in a certain country. Complete parts (a) through (c) below....
The total revenues of consumer electronics since 2000 are approximated by the function f(t) = 78.5 * 1.1"(12 3), where t = 3 corresponds to 2003 and f(t) is in billions of dollars. Find the revenue in the given years below. (a) 2006 (b) 2008 (c) If the function remains accurate, what will the revenues be in 2013? (a) In 2006, the total revenues were approximately S bilion. (Round to two decimal places as needed.)
The annual amount of crude oil production in a country (in millions of barrels) can be approximated by the function f(t) = 868(1.099)', where t= 8 corresponds to the year 2008 (a) Find the amount of production in 2010. (b) of the trend continues, find the amount of production in 2020. (a) The amount of production in 2010 was million barrels. (Round to the nearest whole number as needed.) (b) of the trend continues, the amount of production in 2020...
Test: PRACTICE Final Submit Test This Question: 1 pt 7 of 25 This Test: 25 pts possible Year Expenditures (S bilions) The table shows the national expenditures for health care, in billions, in a country for selected years from 1995 with projections to 2020 Complete parts (a) through (c) below. 1995 2000 2005 2010 2015 2020 1013 1340 1976 2933 3283 4321 a. Find a linear function that models the data, with x equal to the number of years ater...
6. 0.2/1 points | Previous Answers SCalcET8 9.4.009 My Notes Ask Your Suppose the population of the world was about 6.4 billion in 2000. Birth rates around that time ranged from 35 to 40 million per year and death rates ranged from 15 to 20 million per year. Let's assume that the carrying capacity for world population is 20 billion (a) Write the logistic differential equation for these data. (Because the initial population is small compared to the carrying capacity,...
1.Each year, a magazine publishes a list of the richest people in a country. In the last year’s issue, the six richest people and their wealth (to the nearest billion dollars) are as shown in the following table. Consider these six people a population of interest. Person Wealth ($ billions) A 66 B 57 C 43 D 38 E 38 F 32 a. Calculate the mean wealth, µ, of the six people. (Round to one decimal place) b. For samples of size 2,...
A company will need $30,000 in 8 years for a new addition. To moet this goal, the company deposits money in an account today that pays 11% annual interest compounded quarterly. Find the amount that should be invested to total $30,000 in 8 years The company should invest $ (Do not round until the final answer. Then round to the nearest dollar as needed.) Assume the consumption of electricity is increasing at 8% per year. If it continues to increase...
The populations P (in thousands) of a certain city from 2000 through 2008 can be modeled by P = 1111.9ekt where t is the year, with t = 0 corresponding to 2000. In 2002, the population was about 1,300,000. (a) Find the value of k for the model. Round your result to four decimal places. k= (b) Use your model to predict the population in 2015. (Round your answer to the nearest person.) P= thousand