Solve the Equation by the Square Root Property $$x ^ { 2 } = 18$$

question 288

Multiple Choice

Solve the equation by the square root property.
- $$x ^ { 2 } = 18$$

• A) \(\{ 9 \}\)
• B) \(\{ \pm 3 \sqrt { 2 } \}\)
• C) \(\{ 324 \}\)
• D) \(\{ \sqrt { 18 } \}\)

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Definitions:

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Z-test

A Z-test is a statistical test used to determine whether two population means are different when the variances are known and the sample size is large.

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The sample mean is the average value of a sample set of numbers, calculated as the sum of the individual values divided by the number of values in the sample.