The rule is that if $|a| \le k$ for some positive number k, then it can be written as the compound inequality $-k \le a \le k$ . This is a shorthand way of writing the two inequalities $a \ge -k \ \text{ and } \ a \le k$ combined together.

note: $-k \le a$ is the same as $a \ge -k$

From here, we replace k with 3

Therefore, $|a| \le 3$ turns into $-3 \le a \le 3$ which breaks down further to $a \ge -3 \ \text{ and } \ a \le 3$

The keyword "and" is important as we can't pick one or the other. We must pick both $a \ge -3$ and also $a \le 3$

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2 years ago

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Enter the correct answer in the box.

bearhunter [10]

Answer:

here is the answer

Step-by-step explanation:

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3 years ago

What is 336 divided by 7

QveST [7]

336 divided by 7 is 48

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3 years ago

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Which algebraic expression has a term with a coefficient of 3?

sertanlavr [38]

The answer is D. 3y+1

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3 years ago