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Algebra And Trig I

by: Fiona Sipes

Algebra And Trig I MA 153

Fiona Sipes
GPA 3.82

John LaMaster

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John LaMaster
Class Notes
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This 0 page Class Notes was uploaded by Fiona Sipes on Sunday November 1, 2015. The Class Notes belongs to MA 153 at Indiana University Purdue University - Fort Wayne taught by John LaMaster in Fall. Since its upload, it has received 8 views. For similar materials see /class/233535/ma-153-indiana-university-purdue-university-fort-wayne in Mathematics (M) at Indiana University Purdue University - Fort Wayne.


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Date Created: 11/01/15
200 190 180 170 160 150 140 130 120 110 100 WR2 World Population and Concavity l N 1 a 1 b 1 3 1 4 2 5 2 6 Writing Assignment 2 Name Due Thursday September 23 2008 The bar to the right represents 200 million people about two thirds the size of the population of the United States Suppose it measures 10 inches tall 1 a How tall is a bar that represents 1 billion 109 people if on the same scale Hint Since 109 10D106then 109 million The bar would be inches feet tall 1 b How tall is a bar that represents 10 billion people if on the same scale Hint 10 billion 10109 10D 105106 million The bar would be inches feet tall The graph on the following page is from the United Nations Population Division published in 1999 which is the year the world population first hit 6 billion The width of each bar represents a time span of 10 years For example the first light gray bar is the interval from 1750 to 1760 All darkly shaded bars are predicted increments not actual Note that population increments and population size are measured using different scales millions and billions respectively From Question 1 note that these are quite different in size if they were both on the same scale Look up the word incremen and decrement in a good dictionary such as the American Heritage Dictionary of the English Language What are the mathematical meanings of these words Which capital Greek letter is used to denote increments and decrements 7 There are siX darkly shaded bars What time interval is represented by the sixth gray bar From to Why does the graph of population size continue to increase even though the darkly shaded bars decrease Mark on the graph of the population size with an X when it changes its concavity In which years is the graph concave up From to When is the above graph concave down From to Use this model to find what the UN predicts will be the r 39 quot in 2050 What is the UN assuming that will happenfrom 1990 to 2050 Select one a The population would decrease at an decreasing rate b The population would decrease at an increasing rate c The population would increase at an decreasing rate d The population would increase at an increasing rate Billians Milliuni 160 H 53 E m m m 5322 355


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