4 years ago

Which conjunction or disjunction is equivalent to the following inequality?

Mathematics

2 answers:

Harlamova29_29 [7]4 years ago

6 0

Answer:

a - 9 ≤ 4 and a - 9 ≥ - 4

Step-by-step explanation:

Oksana_A [137]4 years ago

4 0

Use the general definition:

|x - a| ≤ k => - k ≤ x - a ≤ k

So, |a - 9| ≤ 4 => - 4 ≤ a - 9 ≤ 4

Which is a - 9 ≥ - 4 and a - 9 ≤ 4.

That is the second option.

Answer: a - 9 ≤ 4 and a - 9 ≥ - 4

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