Find the value of the expression |2x−8| where x=−2.5; 0; 4; 5; 9.5.

The absolute value returns the "positive version" of a number. In other words, if is already positive, then . Otherwise, if is negative, then the absolute value changes its sign, so that it returns positive: .

So, in this case, we have to plug the required values for in the expression . Then, if the result is positive we're ok, otherwise we discard the negative sign.

We have:

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a: inscribed angles

step-by-step explanation:

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