A biologist has placed three strains of bacteria (denoted I, II and III) in a test tube, where they will feedon three different food sources (A, B and C). Each day 700 units of A, 400 units of B and 500 units of Care placed in the test tube. Each bacteria consumes a certain number of units of each food per day, asshown in the table below(a)(b)BacteriaStrain I05BacteriaStrain II11BacteriaStrain II20Food AFood BFood CForm a system of linear equations based on the above problem.Hence, determine the number of bacteria of each strain that can coexist in the test tube andconsume all of the food by using Gauss-Seidel iteration method.

Given that, A biologist has placed three strains of bacteria (denoted I, II and III) in a test tube,…

Answered: A biologist has placed three strains of…

Advanced Engineering Mathematics

10th Edition

ISBN:9780470458365

Author:Erwin Kreyszig

Publisher:Erwin Kreyszig

Chapter2: Second-order Linear Odes

Section: Chapter Questions

Problem 1RQ

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Which test should I use for this problem: A fisheries biologist stocks three different species of sunfish into a pond at an equal rate (500 individuals of each species). She is interested in determining whether catch rates of those fish by anglers differ between the three species. Any person who fishes the pond during the month of June keeps a record of how many fish they caught by each species. Each fish caught is removed from the population (i.e., harvested). Across the entire month, 100 bluegill, 75 green sunfish, and 75 redear sunfish were caught.
Surgery and germs. Joseph Lister (for whom Listerineis named!) was a British physician who was interestedin the role of bacteria in human infections. He suspectedthat germs were involved in transmitting infection, so hetried using carbolic acid as an operating room disinfectant.In 75 amputations, he used carbolic acid 40 times. Of the40 amputations using carbolic acid, 34 of the patientslived. Of the 35 amputations without carbolic acid,19 patients lived. The question of interest is whethercarbolic acid is effective in increasing the chances ofsurviving an amputation.a) What kind of a study is this?b) What do you conclude? Support your conclusion bytesting an appropriate hypothesis.c) What reservations do you have about the design ofthe study?
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Vital Statistics for US in one year: k=10,000 Population: 285,318,000 Deaths: 2,416,000 Live Births: 4,026,000 Deaths of infants under 1 year of age: 27,500 Deaths of infants under 28 days of age: 18,000 Motor Vehicle Deaths: 43,900 Women aged 15-44: 61,811,000 Fetuses delivered w/o life after 20 weeks of gestation: 39,900 Coronavirus infected persons: 900,000 Deaths from Coronavirus: 17,402 Given the Vital Statistics above, calculate the Coronavirus Mortality Rate for Coronavirus- Infected Person. Edit View Insert Format Tools Table 12pt x Paragraph v B T U A v
part 3 4
A population has the following characteristics. (a) A total of 75% of the population survives the first year. Of that 75%, 25% survives the second year. The maximum life span is 3 years. (b) The average number of offspring for each member of the population is 3 the first year, 5 the second year, and 3 the third year. The population now consists of 112 members in each of the three age classes. How many members will there be in each age class in 1 year? 0 ≤ age ≤ 1 112 X 84 1 ≤age ≤ 2 2 ≤ age ≤ 3 28 In 2 years? 0 ≤ age ≤ 1 1 ≤ age ≤ 2 2 ≤ age ≤ 3 84 63 21 xx> X X
Vital Statistics for US in one year: k=10,000 Population: 285,318,000 Deaths: 2,416,000 Live Births: 4,026,000 Deaths of infants under 1 year of age: 27,500 Deaths of infants under 28 days of age: 18,000 Motor Vehicle Deaths: 43,900 Women aged 15-44: 61,811,000 Fetuses delivered w/o life after 20 weeks of gestation: 39,900 FLU infected persons: 900,000 Deaths from Flu: 17,402 Given the Vital Statistics above, find the general fertility rate. Edit View Insert Format Tools Table 12pt Paragraph BIU AT2 聞く # V くく

The population and deaths of two towns according to age groups are giyen below: Town A Town B Age group Population Population 2000 3500 1000 Deaths Deaths 0-10 10-55 55 and over 2500 6500 1500 60 75 30 25 20 30 Calculate Crude death rates for Town A and Town B
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The table shows the leading causes of death in a certain country in a recent year. The population of the country was 311311 million. If you lived in a typical city of 500,000, how many people would you expect to die of cancercancer each year? Cause Deaths Cause Deaths Heart disease 596 comma 700596,700 Alzheimer's disease 84 comma 90084,900 Cancer 575 comma 300575,300 Diabetes 73 comma 40073,400 Chronic respiratory diseases 143 comma 100143,100 Pneumonia/Influenza 53 comma 40053,400 Stroke 128 comma 600128,600 Kidney disease 45 comma 30045,300 Accidents 122 comma 500122,500 Suicide 38 comma 60038,600 About people would be expected to die of cancer each year. (Type a whole number. Round to the nearest person as needed.)
1. Susan Sound predicts that students will learn most effectively with a constant background sound, as opposed to an unpredictable sound or no sound at all She randomly divides twenty-four students into three groups of eight. All students study a passage of text for 30 minutes. Those in group 1 study with background sound at a constant volume in the background. Those in group 2 study with noise that changes volume periodically. Those in group 3 study with no sound at all. After studying, all students take a 10 point multiple choice test over the material. Their scores follow test scoresS group 7 46 86 629 5 5 3 4 4 7 2 2 2 471 2 1 5 5 1) constant sound 2) random sound 3) no sound

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