The Excel graph below shows only the number of infectives over time (in days) for a disease. Use the graph to answer the questions. Infectives for S-I-R Model 6000 5000 4000 People 3000 2000 1000 100 200 300 400 Time in Days What is the equilibrium value for the number of infectives? About 100 About 200 About 300 O None of the above

The Excel graph below shows only the number of infectives over time (in days) for a disease. Use the graph to answer the questions. Infectives for S-I-R Model 6000 5000 4000 People 3000 2000 1000 100 200 300 400 Time in Days What is the equilibrium value for the number of infectives? About 100 About 200 About 300 O None of the above

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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Nate is investigating how long his phone's battery lasts (in hours) for various brightness levels (on a scale of 0- 100). His data is displayed in the table and graph below. 89 Brightness Level (x) Hours (y) 26 30 52 55 68 68 79 5.1 6. 3.9 4.5 1.8 5.7 2.8 2.3 +6 积 3. 70 80 90 100 11 60 Brightness Level 10 30 40 50 What is the residual for the point (68,5.7)? Round to 3 decimal places. hours Question Help: D Video D Post to forum Submit Question EGO 20
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How much should a healthy Shetland pony weigh? Let x be the age of the pony (in months), and let y be the average weight of the pony (in kilograms). x 3 6 12 20 26 y 60 95 140 160 189 (a) Make a scatter diagram of the data and visualize the line you think best fits the data. Flash Player version 10 or higher is required for this question. You can get Flash Player free from Adobe's website. (b) Would you say the correlation is low, moderate, or strong? low moderate strong Would you say the correlation is positive or negative? positive negative (c) Use a calculator to verify that x = 67, x2 = 1265, y = 644, y2 = 93,546, and xy = 10,544. Compute r. (Round your answer to three decimal places.) As x increases from 3 to 26 months, does the value of r imply that y should tend to increase or decrease? Explain your answer. Given our value of r, y should…
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Cell Phones Using the CTIA Wireless Survey for1985–2009, the number of U.S. cell phone subscribers (in millions) can be modeled byy = 0.632x2 - 2.651x + 1.209where x is the number of years after 1985.a. Graphically find when the number of U.S.subscribers was 301,617,000.b. When does the model estimate that the number ofU.S. subscribers would reach 359,515,000?c. What does the answer to (b) tell about this model?
Work Hours The average weekly hours worked byemployees at PriceLo Company are given by the datain the table below a. Write the equation of a function that describes theaverage weekly hours using an input x equal to thenumber of months past May 2016.b. What type of function is this?
Please solve it sir and dont do handwritten please explain concept ... please if you do in excel show steps please with output.
Sales of the Flying Flintmobile has been increasing over the past five years. The operations manager has estimated sales in 2017 to be 410 Flying Flintmobiles. Using exponential smoothing with a weight of α = 0.30, develop forecasts for 2017 through 2022. Year Sales Forecast 2017 450 2018 495 2019 518 2020 563 2021 584 2022 Advise Flying Flintmobile of the benefits associated with this method of forecasting Caution the manager on the limitations associated with your forecast.
Carbon foot print: Carbon dioxide (CO, is produced by burning fossil fuels such as oil and natural gas, and has been connected to global warming. The following table presents the average amounts (in metric tons) of CO, emissions for certain years per person in the United States and per person in the rest of the world. Year Non-U.S. U.S. 1990 3.6 19.2 1992 3.5 18.8 1993 3.3 19.7 1994 3.3 19.8 1995 3.3 19.5 1997 3.4 20.0 1998 3.3 19.5 Source: World Bank Send data to Excel Part: 0 / 3 Part 1 of 3 Compute the least-squares regression line for predicting U.S. emissions from non-U.S. emissions. Round the slope and y- intercept to at least four decimal places. Regression line equation: y =
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