Given:
Which of the following statements is necessarily true?
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Given:
Which of the following statements is necessarily true?
To solve the absolute value inequality , we begin by removing the absolute value expression. This gives us a compound inequality:
.
We will solve this compound inequality by handling each part separately:
Combining the two solutions from the parts, we find:
.
The solution indicates that must be greater than -2 and less than 6. This form matches answer choice 4. Therefore, the correct solution is:
.
Given:
\( \left|2x-1\right|>-10 \)
Which of the following statements is necessarily true?
The absolute value measures distance from zero. When this distance is less than 8, the expression inside must be between -8 and 8, creating the compound inequality.
Use 'and' (compound) when the inequality is less than (<). Use 'or' (union) when the inequality is greater than (>). Think: less than means 'between' values.
Remember: means the expression is trapped between -number and +number. So write: .
Pick any value from your solution interval and substitute it back. For , try x = 0: ✓
The symbol determines whether boundary points are included. With <, the endpoints -2 and 6 are not part of the solution. With ≤, they would be included.
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