Explanation Given: r is 0.007 N ( 0 ) is 315 million Formula Used: We are requested to use the approximate doubling time. The doubling time is derived from the exponential growth rate formula which is as follows: N ( t ) = N ( 0 ) e r t N ( t ) is population at time t t is time r is population growth rate. To derive the doubling time just evaluate N ( t ) for twice the initial value. This is as follows: 2 N ( 0 ) = N ( 0 ) e r D T Which yields: D T = ln ( 2 ) r Where D T is time taken for the population to double r is population growth rate. Calculation: Part (a): We need to estimate the population at 2050...

6th Edition

ISBN: 8220100802713

Author: Briggs

Publisher: PEARSON

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Chapter 8.C, Problem 23E

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The estimate of the US population.

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EBK USING AND UNDERSTANDING MATHEMATICS

Ch. 8.A - Prob. 1QQ Ch. 8.A - Prob. 2QQ Ch. 8.A - The balance owed your credit card doubles from...Ch. 8.A - The number Of songs in your iPod has increased...Ch. 8.A - Which of the following is in example of...Ch. 8.A - On a chessboard with 64 squares, you place 1 penny...Ch. 8.A - At 11:00 you place a single bacterium in a bottle,...Ch. 8.A - Consider the bacterial population described in...Ch. 8.A - Consider the bacterial population described in...Ch. 8.A - Which of the following is not true of any...

Ch. 8.A - Describe basic differences between linear growth...Ch. 8.A - 2. Briefly explain how repeated doublings...Ch. 8.A - Briefly summarize the Story Of the bacteria in the...Ch. 8.A - Explain the meaning Of the two key facts about...Ch. 8.A - Prob. 5E Ch. 8.A - Suppose you had a magic hank account in which your...Ch. 8.A - A small town that grows exponentially can become a...Ch. 8.A - H. Human population has been growing exponentially...Ch. 8.A - Prob. 9E Ch. 8.A - Prob. 10E Ch. 8.A - Prob. 11E Ch. 8.A - Prob. 12E Ch. 8.A - Prob. 13E Ch. 8.A - Prob. 14E Ch. 8.A - Linear or Exponential? State whether the growth...Ch. 8.A - Prob. 16E Ch. 8.A - Chessboard Parable. Use the chessboard parable...Ch. 8.A - Chessboard Parable. Use the chessboard parable...Ch. 8.A - Chessboard Parable. Use the chessboard parable...Ch. 8.A - Prob. 20E Ch. 8.A - Magic Penny Parable. Use the magic penny parable...Ch. 8.A - Prob. 22E Ch. 8.A - Magic Penny Parable. Use the magic penny parable...Ch. 8.A - Magic Penny Parable. Use the magic penny parable...Ch. 8.A - Bacteria in a Bottle Parable. Use the bacteria...Ch. 8.A - Bacteria in a Bottle Parable. Use the bacteria...Ch. 8.A - Bacteria in a Bottle Parable. Use the bacteria...Ch. 8.A - Bacteria in a Bottle Parable. Use the bacteria...Ch. 8.A - 29. Human Doubling. Human population in the year...Ch. 8.A - Doubling Time versus Initial Amount. a. Would you...Ch. 8.A - Facebook Users. The table shows the number of...Ch. 8.A - Prob. 32E Ch. 8.A - Exponential Growth. 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Give an example in which it is important to use...Ch. 8.B - Our town is growing with a doubling time of 25...Ch. 8.B - Our town is growing at a rate of 7% per year, so...Ch. 8.B - A toxic chemical decays with a hall-life of 10...Ch. 8.B - The hall-life of plutomum-239 is about 24,000...Ch. 8.B - Logarithms. Refer to the Brief Review on p. 488....Ch. 8.B - Logarithms. Refer to the Brief Review on p. 488....Ch. 8.B - Prob. 15E Ch. 8.B - Prob. 16E Ch. 8.B - 13-24: Logarithms. Refer to the Brief Review on p....Ch. 8.B - Prob. 18E Ch. 8.B - Logarithms. Refer to the Brief Review on p. 488....Ch. 8.B - Logarithms. Refer to the Brief Review on p. 488....Ch. 8.B - 13-24: Logarithms. Refer to the Brief Review on p....Ch. 8.B - Prob. 22E Ch. 8.B - Prob. 23E Ch. 8.B - Logarithms. Refer to the Brief Review on p. 488....Ch. 8.B - Prob. 25E Ch. 8.B - Prob. 26E Ch. 8.B - Prob. 27E Ch. 8.B - Prob. 28E Ch. 8.B - Prob. 29E Ch. 8.B - Prob. 30E Ch. 8.B - Prob. 31E Ch. 8.B - Prob. 32E Ch. 8.B - Prob. 33E Ch. 8.B - Prob. 34E Ch. 8.B - 31. Rabbits. A community of rabbits begins with an...Ch. 8.B - Prob. 36E Ch. 8.B - Doubling Time Formula. Use the approximate...Ch. 8.B - Prob. 38E Ch. 8.B - Prob. 39E Ch. 8.B - Prob. 40E Ch. 8.B - Prob. 41E Ch. 8.B - Prob. 42E Ch. 8.B - Prob. 43E Ch. 8.B - 41 -48: Half-Life. Each exercise gives a half-life...Ch. 8.B - Prob. 45E Ch. 8.B - 41 -48: Half-Life. Each exercise gives a half-life...Ch. 8.B - Prob. 47E Ch. 8.B - 41 -48: Half-Life. Each exercise gives a half-life...Ch. 8.B - Prob. 49E Ch. 8.B - 49-52: Half-Life Formula. Use the approximate...Ch. 8.B - Prob. 51E Ch. 8.B - 49-52: Half-Life Formula. Use the approximate...Ch. 8.B - Prob. 53E Ch. 8.B - Exact Formulas. 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Use the inverse square law for...Ch. 8.D - Inverse Square Law. Use the inverse square law for...Ch. 8.D - The pH scale. Use the pH scale to answer the...Ch. 8.D - The pH Scale. Use the pH scale to answer the...Ch. 8.D - Prob. 27E Ch. 8.D - Prob. 28E Ch. 8.D - Prob. 29E Ch. 8.D - Prob. 30E Ch. 8.D - The pH Scale. Use the pH scale to answer the...Ch. 8.D - 25-32: The pH Scale. Use the pH scale to answer...Ch. 8.D - Logarithmic Thinking. Briefly describe, in words,...Ch. 8.D - 33-38: Logarithmic Thinking. Briefly describe, in...Ch. 8.D - Logarithmic Thinking. Briefly describe, in words,...Ch. 8.D - Logarithmic Thinking. Briefly describe, in words,...Ch. 8.D - Prob. 37E Ch. 8.D - Prob. 38E Ch. 8.D - 39. Sound and Distance. The decibel level for...Ch. 8.D - 40. Variation in Sound with Distance. Suppose that...Ch. 8.D - Toxic Dumping in Acidified Lakes. Consider a...Ch. 8.D - Earthquakes in the News. Find a recent news story...Ch. 8.D - Prob. 43E Ch. 8.D - Disasters. Find the death lolls for some of the...Ch. 8.D - Prob. 45E

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