Predict the residential retail sale of electricity in 2025. Round to the nearest billion of kilowatt-hours. How many predicted billions of kilowatt-hours?NOTE: You may get the wrong answer if you do not use the quadratic model with coefficients rounded. Electricity ConsumptionThe table below gives the retail sale of electricity (in billions of kilowatt-hours) for theresidential and commercial sectors of the United States.Residential (billions of kilowatt-hours)Year2000200320062009201220151,1921,2761,4001,4201,4021,390Let a represent time (in years) with x = 0 corresponding to 2000, and let y represent thecorresponding residential sales. Find the quadratic regression equation for the datay =R(x) = ax² +bx+cwith a rounded to the nearest hundredth (2 decimal places), b rounded to the nearest tenth (1decimal place), and c rounded to the nearest integer. (See the Regression page in the GettingStarted module for ways of computing a regression model.)

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Let a represent time (in years) with x = 0 corresponding to 2000, and let y represent the corresponding residential sales. Find the quadratic regression equation for the data y = R(x) = ax² +bx+c with a rounded to the nearest hundredth (2 decimal places), b rounded to the nearest tenth (1 decimal place), and c rounded to the nearest integer. (See the Regression page in the Getting Started module for ways of computing a regression model.)

Let a represent time (in years) with x = 0 corresponding to 2000, and let y represent the corresponding residential sales. Find the quadratic regression equation for the data y = R(x) = ax² +bx+c with a rounded to the nearest hundredth (2 decimal places), b rounded to the nearest tenth (1 decimal place), and c rounded to the nearest integer. (See the Regression page in the Getting Started module for ways of computing a regression model.)

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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Question

100%

Predict the residential retail sale of electricity in 2025. Round to the nearest billion of kilowatt-hours. How many predicted billions of kilowatt-hours?

NOTE: You may get the wrong answer if you do not use the quadratic model with coefficients rounded.

Electricity Consumption
The table below gives the retail sale of electricity (in billions of kilowatt-hours) for the
residential and commercial sectors of the United States.
Residential (billions of kilowatt-hours)
Year
2000
2003
2006
2009
2012
2015
1,192
1,276
1,400
1,420
1,402
1,390
Let a represent time (in years) with x = 0 corresponding to 2000, and let y represent the
corresponding residential sales. Find the quadratic regression equation for the data
y =
R(x) = ax² +bx+c
with a rounded to the nearest hundredth (2 decimal places), b rounded to the nearest tenth (1
decimal place), and c rounded to the nearest integer. (See the Regression page in the Getting
Started module for ways of computing a regression model.)

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