10
Answer: ASet 6: Linear Inequalities (Advanced)
Explanation
Solve:
A.
✓ Correct
B.
C.
D.
or
Detailed Explanation
Choice A is correct. Choice A is the correct answer. Split into cases. 1. Case 1: 2. Case 2: 3. Combine: The union of and is (since is inside ). - Check : (5>0) True. - Check : (17>-18) True. - Check : (1>6) False. is or . 1. 2. Union: OR . The set includes . So . So seems correct. Choice A is correct. Choice B is incorrect (subset). Choice C is incorrect. Choice D is incorrect.
Key Steps:
•
The correct answer is
Why others are wrong:
B: Choice B is incorrect and may result from a calculation error.
C: Choice C is incorrect and may result from a calculation error.
D: Choice D is incorrect and may result from a calculation error.
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