Algebra and Trigonometry: Structure and Method, Book 2

2000th Edition

ISBN: 9780395977255

Author: MCDOUGAL LITTEL

Publisher: McDougal Littell

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Concept explainers

Correlation

Correlation defines a relationship between two independent variables. It tells the degree to which variables move in relation to each other. When two sets of data are related to each other, there is a correlation between them.

Linear Correlation

A correlation is used to determine the relationships between numerical and categorical variables. In other words, it is an indicator of how things are connected to one another. The correlation analysis is the study of how variables are related.

Regression Analysis

Regression analysis is a statistical method in which it estimates the relationship between a dependent variable and one or more independent variable. In simple terms dependent variable is called as outcome variable and independent variable is called as p…

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Question

Chapter 4.1, Problem 17WE

To determine

Simplify the polynomial 3(x2−2x+4)+2(5x2−7) .

Expert Solution & Answer

Answer to Problem 17WE

The simplified polynomial is 13x2−6x−2 .

Explanation of Solution

Given information: The given polynomial is,

3(x2−2x+4)+2(5x2−7)

Calculation: By simplification,

3(x2−2x+4)+2(5x2−7)=(3x2−6x+12)+(10x2−14)=13x2−6x−2

Chapter 4.1, Problem 16WE

Chapter 4.1, Problem 18WE

Chapter 4 Solutions

Algebra and Trigonometry: Structure and Method, Book 2

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Correlation Vs Regression: Difference Between them with definition & Comparison Chart; Author: Key Differences;https://www.youtube.com/watch?v=Ou2QGSJVd0U;License: Standard YouTube License, CC-BY

Correlation and Regression: Concepts with Illustrative examples; Author: LEARN & APPLY : Lean and Six Sigma;https://www.youtube.com/watch?v=xTpHD5WLuoA;License: Standard YouTube License, CC-BY

Simplify the polynomial 3 ( x 2 − 2 x + 4 ) + 2 ( 5 x 2 − 7 ) .

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Simplify the polynomial 3(x2−2x+4)+2(5x2−7) .

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