Given:
Which of the following statements is necessarily true?
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Given:
Which of the following statements is necessarily true?
We start with the inequality:
This absolute value inequality breaks into two separate inequalities:
Solving the first inequality:
Subtract from both sides:
Add to both sides:
Divide by :
Solving the second inequality:
Distribute the negative:
Add to both sides:
Add to both sides:
Divide by :
The solution is the intersection: and . Hence, .
Given:
\( \left|2x-1\right|>-10 \)
Which of the following statements is necessarily true?
The absolute value represents distance from zero. This distance can come from positive or negative values, so we need both cases: when 5x - 2 is positive and when it's negative.
When you have , distribute the negative first: . Then solve normally by collecting like terms.
You need both conditions to be true simultaneously. From AND , the overlap gives us .
Yes! If the right side becomes negative or zero, like , there's no solution because absolute values are always non-negative.
Pick a test value from your solution interval, like . Substitute: and . Since 2 < 8, our solution works!
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