Find All Rational Roots of the Equation $x = \frac { 2 } { 5 }$

question 30

Multiple Choice

Find all rational roots of the equation. ​
147x ³ - 98x ² + 27x - 18 = 0
​

• A) \(x = \frac { 2 } { 5 }\)
• B)​ \(x = \frac { 2 } { 3 }\)
• C)​ \(x = - \frac { 3 } { 7 } i\)
• D)​ \(x = \frac { 3 } { 7 } i\)

Understand the implications of goal types on personal development.

Analyze and provide examples of idiographic and nomothetic goals.

Understand the role of goals in organizing and directing an individual's life.

Recognize the importance of goal orientation in personality psychology.

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Definitions:

Simple Random Sample

A sample of individuals selected from a population in such a way that everyone is equally likely to be selected. See also Stratified sample.

Stratified Sample

In survey research, a sampling design whereby researchers subdivide the population into groups according to characteristics known or thought to be important, select a random sample of groups, and then draw a sample of units within each selected group.

Convenience Sample

A sampling technique where participants are selected based on their ease of accessibility and availability to the researcher, rather than random selection.

Dependent Variable

In an experiment, the variable that is measured to determine whether it is affected by the manipulation of one or more other variables (independent variables).