Evaluate the Expression Without Using a Calculator $\sqrt { 81 }$

question 115

Multiple Choice

Evaluate the expression without using a calculator.
- $\sqrt { 81 }$

• A)9
• B) \(\frac { 1 } { 81 }\)
• C)6561
• D)-9

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Definitions:

Research Allegiance

The tendency of researchers to favor outcomes that align with their own theoretical preferences or biases, potentially influencing the results of their studies.

Outcome Effects

The results or changes that occur as a consequence of an experimental treatment or intervention in a study.

Impartial Observer

An individual who observes and records events or data without influencing outcomes or being biased by personal interest or involvement.

Experimenter Expectancies

The effect that the researcher's expectations can have on the outcome of an experiment, potentially influencing participants' behavior.