Find the First Term and the Common Difference for the Arithmetic

question 260

Multiple Choice

Find the first term and the common difference for the arithmetic sequence. Round approximations to the nearest
hundredth.
- $S _ { 9 } = - 306 , a _ { 9 } = - 70$

• A) \(a _ { 1 } = 2 , d = - 9\)
• B) \(\mathrm { a } _ { 1 } = 562 , \mathrm {~d} = - 9\)
• C) \(a _ { 1 } = 2 , d = - 15.56\)
• D) \(\mathrm { a } _ { 1 } = 562 , \mathrm {~d} = - 15.56\)

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Definitions:

Experimental Treatment

A novel therapeutic approach or intervention being tested for its effectiveness, often within the context of a clinical trial.

Dependent Variable

The outcome factor; the variable that may change in response to manipulations of the independent variable.

Independent Variable

In experimental research, the variable that is manipulated or changed to observe its effect on a dependent variable.

Self-esteem

An individual's subjective evaluation of their own worth, encompassing beliefs and emotions about oneself.