6:24< WS5_1 ExponentialMo...c) Approximately how long will it be until there are less than 60,000 of these cans still in use?Page 1 of 23. The population of Nigeria can be approximated by the function P(r)=130.5-(1.024)' where r is the number ofyears since the beginning of 2002 and P is the population in millions.a) What was the population of Nigeria at the beginning of 2002?b) What was the population of Nigeria at the beginning of 2008?c) During which year should we expect the population of Nigeria to reach 250 million?12CalendarDashboardTo DoDNotificationsPage 2 of 2Inbox

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Answered: 3. The population of Nigeria can be…

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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Below are the prices of Amazon stock "y" over a period of 5 days, the number of shares (in 100s) of company's stocks sold (x1), and the volume of exchange (in millions) (x2) is shown below. Day "y" (x1) (x2) 87.5 950 11 2 86 945 11.25 3 84 940 11.75 4 83 930 12.5 84.5 935 12 6 87 970 13 7 85 960 14 Run a regression and use the output to answer the following: 1. Provide an equation that can be used to predict the price of the stock Y = x1 x2 2. The + explains if the equation is a good predictor for price of the stock 3. What is the value for question #2 % (Round to the second (2nd) decimal place) 4. At 95% confidence, determine which variable(s) are significant 5. If in a given day, the trading volume of exchange was 16 million and the volume sold was 945,000, what would you expect the price of the stock to be? $ (Round to the second (2nd) decimal place)
2. Lijah opened an account at Advantis Credit Union. The balance of her account after x years is represented by the function b(x) = 500(1.05)*. What annual interest rate is Lijah earning? а. b. After how many years did it take for Lijah's balance to double? Show all of your work.
The heat index (HI) is an estimate of the temperature felt by the human body based on the actual measured air temperature T (in °F) and relative humidity h,. It is given by HI = - 42.379 + 2.049015237 + 10.14333127h, – 0.22475541Th, – (6.83783 × 10-³)T² - (5.481717 x 10-3)h,² + (1.22874 × 10-³)7°h, + (8.5282 - 10-4)Th,² - (1.99 x 10-")T®h,?. a. If the air temperature in your area is 107°F with a relative humidity of 8%, how hot does your body feel? b. If the air temperature and relative humidity is known to be increasing at a rate of 2°F per sec and 1% per sec, resp., how fast is the heat index changing at the moment when the air temperature in your area is 107°F with a relative humidity of 8%?
25. (a) Determine whether y = 3. 7* is a linear, power, or exponential function (i.e, choose one column,and fill in the missing values in that column. Linear Function slope = Power Function coefficient = Exponential Function initial value = y-intercept = exponent = b = (b) Determine whether y = is a linear, power, or exponential function (i.e, choose one column,and fill in the missing values in that column. Exponential Function initial value Linear Function Power Function coefficient = slope = y-intercept = exponent = (c) Determine wheter y = 3- (r+10)-7x is a linear, power, or exponential function (i.e, choose one column,and fill in the missing values in that column. Linear Function slope = Power Function coefficient = Exponential Function initial value = y-intercept = exponent = b = (d) Determine wheter y = 12" · 997 is a linear, power, or exponential function (i.e, choose one column,and fill in the missing values in that column. Linear Function slope = Power Function coefficient =…
Newell et al. 2022 observed the following relationship between precipitation p (measured in mmrainfall) on the abundance of arthropods A (measured in mg/m2 biomass) in Peru. I provided an image of the equation below (a) On what intervals does increasing precipitation increase biomass? (b) On what intervals does increasing precipitation decrease biomass? c)At what rate does increasing precipitation increase/decrease biomass in a rain forest thatreceives 500mm of rain annually?
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Write down first order ODE that could describe: "The rate at which COVID-19 spreads (an increase in number of infected people) through a university is jointly proportional to the number of people who have in- fected with COVID-19 and the number who is healthy. Assume that the population size is 1,000 and people can either be infected or healthy."
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