Evaluate the Expression with the Given Replacement Values $x ^ { 2 } ; x = - 9$

question 290

Multiple Choice

Evaluate the expression with the given replacement values.
- $x ^ { 2 } ; x = - 9$

• A) 81
• B) \(- 18\)
• C) \(- 81\)
• D) 18

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Definitions:

T Represent

T represent, likely a mistype for "T value", is a statistical measure that indicates the standard deviation difference between two sample means, commonly used in t-tests.

Obtained Value

The actual value resulting from a statistical test, which is compared against a critical value to determine significance.

T Represent

In statistics, "T" often stands for the t-statistic, used in t-tests to compare the means of two groups.

Test Statistic

A value calculated from sample data during a hypothesis test, used to determine whether to reject the null hypothesis.