Can I get some help with this "finding a least-squares fit" problem? In the order of the data given in the following table, write a system of linear equations in terms of Cand D.Ex: 1.2 :|= C + Ex: 5D14318.8= C +D= C+D2111.8= C +D7196.47219.8

Answered: In the order of the data given in the…

Glencoe Algebra 1, Student Edition, 9780079039897, 0079039898, 2018

18th Edition

ISBN:9780079039897

Author:Carter

Publisher:Carter

Chapter8: Polynomials

Section8.1: Adding And Subtracting Polynomials

Problem 58PPS

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In the order of the data given in the following table, write a system of linear equations in terms of C and D. Ex: 1.2 = = C + Ex: 5 — C + = C + =C+ D DDD D D D 2 X 18 21 20 y 91.1 296.5 351.1 318.6
The table shows the numbers of visitors y (in thousands) to one country from another country from 2012 through 2014. Visitors, y (in thousands) Year 2012 1476 2013 2014 1805 2186 (a) The data can be modeled by the quadratic function y = at? + bt + c. Write a system of linear equations for the data. Let t represent the year, with t= 12 corresponding to 2012. = 1476 = 1805 = 2186 (b) Use the matrix capabilities of a graphing utility to find the inverse of the coefficient matrix of the system from part (a). (c) Use the result of part (b) to solve the system and write the model y = at2 + bt = c. (d) Use the graphing utility to graph the model with the data.
Peter Davis teaches a course in marketing. He uses the system shown to the right for assigning grades to his students . From the information in the table, what percent of the students receive the grade B? Grade A B D F Score in Class Greater than x + 1.3s x + 0.5stox + 1.3s x - 0.5s to x + 0.5s x - 1.3stox - 0.5s Below x - 1.3s From the information in the table % percent of the students will receive the grade B. (Round to the nearest tenth as needed
At the BMV, suppose that the length of time you must wait before speaking to a customer service representative is linearly related to the number of people who are in line in front of you. If there are 8 people in line in front of you, you will wait 44 minutes, and if there are 14 people in front of you, you will wait 68 minutes. How long will you wait if there are 10 people in front of you?
The linear function T = ÷C+47 also predicts the temperature in Fahrenheit based on the input of the number of cricket chirps in 15 seconds. 140 120 Temperature 1 y = x+ 47 : (in degrees fahrenheit) 100 80 60 40 20 Number of Cricket Chirps (per 15 seconds) 40 -20 20 40 60 80 100 120 140 160 180 200 220 240 260 280 300 320 340 -20 40 How many chirps in 15 seconds would you expect if the temperature was 60 degrees Fahrenheit? Do not include any text. Only give the numerical value.
Please choose an option
Flying twice as farA flight from Los Angeles to ABQ is about 2 hours but is 670.2 miles.A flight from San Jose to Chicago is 4 hours but is 1859.0 miles.Can anyone explain why the travel time from San Jose to Chicago is notlonger and closer to 5.75 hours?If the distance increase by 2, shouldnt the time increase by a factorof 2 as well?1. Write a linear model for this question. Takeoff and landing will take a fixed amount of time. Actualtravel in the air will take time proportional to the distance traveled. Think about which of thevariables (time and distance) is the independent variable, and identify the slope and intercept withtheir units.2. Use the data in the quotation to estimate the two constants in your linear model.
How does the function y = -2x + 6 differ from the linear parent function?
Suppose that the number of tee shirts sold (N) depends linearly on the price charged (x). Write an equation showing this dependence.
After 3 months of membership at a health club, a new member had paid a total of $240. After 7 months, the new member had paid $400. Which linear model represents the total cost, C, as a function of t, the time of the membership in months?
see the picture
4. 9 An ice cream shop sells small and large sundaes. One day, 30 small sundaes and 50 large sundaes were sold for $420. Another day, 15 small sundaes and 35 large sundaes were sold for $270. Sales tax is included in all prices. If x is the cost of a small sundae and y is the cost of a large sundae, write a system of equations to represent this situation. Peyton thinks that small sundaes cost $2.75 and large sundaes cost $6.75. Is Peyton correct? Justify your answer. Using your equations, determine algebraically the cost of one small sundae and the cost of one large sundae.

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In the order of the data given in the following table, write a system of linear equations in terms of C' and D. Ex: 1.2 = C + Ex: 5 = C + D 14 318.8 D = C + D 111.8 = C + D 106 2]