Estimate at what capacity U. S. nuclear power plants were working in 2013.% Round to the nearest whole percent.Predict when U. S. nuclear power plants will be working at full (100%) capacity.Enter the year this occurs. The capacities at which U.S. nuclear power plants are working are shown in table for various years.Year Percent197556198059198558199070199576200088200489Let f(t) be the capacity (in percent) at which U.S. nuclear power plants are working at t years since 1970.A model of the situation is f(t) = 0.027t2 +0.216t + 53.296.Use a graphing calculator to draw the graph of the model and, in the same viewing window, thescattergram of the data. Does the model fit the data well?O The function is a good model for the data.O The function is not a good model for the data

The capacities at which U.S. nuclear power plants are working are shown in the table.ft models the…

Answered: The capacities at which U.S. nuclear…

College Algebra

1st Edition

ISBN:9781938168383

Author:Jay Abramson

Publisher:Jay Abramson

Chapter6: Exponential And Logarithmic Functions

Section6.8: Fitting Exponential Models To Data

Problem 3TI: Table 6 shows the population, in thousands, of harbor seals in the Wadden Sea over the years 1997 to...

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Table 6 shows the population, in thousands, of harbor seals in the Wadden Sea over the years 1997 to 2012. a. Let x represent time in years starting with x=0 for the year 1997. Let y represent the number of seals in thousands. Use logistic regression to fit a model to these data. b. Use the model to predict the seal population for the year 2020. c. To the nearest whole number, what is the limiting value of this model?
The US. import of wine (in hectoliters) for several years is given in Table 5. Determine whether the trend appearslinear. Ifso, and assuming the trend continues, in what year will imports exceed 12,000 hectoliters?
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The capacities at which U.S. nuclear power plants are working are shown in table for various years. Year Percent 1975 56 1980 59 1985 58 1990 70 1995 76 2000 88 2004 89 Let f(t)f(t) be the capacity (in percent) at which U.S. nuclear power plants are working at t years since 1970. A model of the situation is f(t)=0.027t2+0.216t+53.296 Use a graphing calculator to draw the graph of the model and, in the same viewing window, the scattergram of the data. Does the model fit the data well? The function is a good model for the data. The function is not a good model for the data Estimate at what capacity U. S. nuclear power plants were working in 2012._______%. Round to the nearest whole percent.Predict when U. S. nuclear power plants will be working at full (100%) capacity._________. Enter the year this occurs.
model a population p if its rate of growth is proportional to the amount present at time t
The numbers of polio cases in the world are shown in the table for various years. Year Number of Polio Cases (thousands) 1988 1992 1996 2000 2005 2007 f(t) Let f(t) be the number of polio cases in thousands t years since 1980. Use a graphing calculator to draw a scattergram of the data. Is it better to model the data by using a linear or exponential model? Select an answer ✓ Find an equation of f. Hint 350 138 34 5 3.2 1.3 Hint The number of polio cases is Select an answer Predict the number of polio cases in 2020. Round the coefficients to 4 decimal places. years by by Select an answe per year. Select an answe Predict in which year there will be 1 case of polio. Hint Find the approximate half-life of the number of polio cases. Hint
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, forecasts are developed for 2017 through 2022. Year Sales Forecast 2016 450 N/A 2017 495 410 (given) 2018 518 (0.3 x 495)+(0.7 x 410) = 435.5 2019 563 (0.3x518)+(0.7x435.5) = 460.25 2020 584 (0.3x563)+(0.7x460.25) = 491.075 2021 (0.3x584)+(0.7x491.075) = 518.9525 1. Advise Flying Flintmobile of the benefits associated with this method of forecasting.
DIRECTION: Compute for period 8 using Simple exponential smoothing if a = 0.20 Use quantitative forecast methods for the data shown below: 1 | 2 Period Observatio 3 4 5 60 70 55 60 45 60 65
Element X is a radioactive isotope such that its mass decreases by 20% every year. Ifan experiment starts out with 730 grams of Element X, write a function to representthe mass of the sample after t years, where the monthly rate of change can be foundfrom a constant in the function. Round all coefficients in the function to four decimalplaces. Also, determine the percentage rate of change per month, to the nearesthundredth of a percent.
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