3 ways. You can do 1 from the 26 class. 2 from the 31 and 1 from the 28 class
2 from the 26 class, 1 from the 31 class and 1 from the 28 class
2 from the 28 class, 1 from the 31 class and 1 from the 26 class
To solve an absolute inequality first step is to isolate absolute value expression.
Hence remove -4 from the left side. So, add 4 to each sides of the inequality.
2|x + 7|−4 ≥ 0
2|x + 7|−4 +4≥ 0 +4
2|x + 7| ≥ 4 Combine the like terms.
Divide each sides by 2.
|x + 7| ≥2
Next step is to remove the absolute value sign. So,
x + 7≥2 and x+7≤-2.
x≥2-7 and x≤-2-7
x≥-5 and x≤-9
So, the correct choice is C. {x | x ≤ -9 or x ≥ -5}.
Base × half the height is 3×2=6
Answer:
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