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Good question.

Think about lxl > 3: x can be >3 or <-3. Now lxl < 3: x is <3 and >-3.

If the variable is on the left, > goes with or. < goes with and.

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Q: How can you tell whether an absolute value inequality is equivalent to a compound inequality with the word and or to a compound inequality with the word or?
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How do you decide whether a number is a solution of an inequality?

Substitute the number in place of 'x' in the inequality, and see whether the statement you have then is true.


Each number below is a solution of the inequality 2x plus 3 and gt7 EXCEPT?

I don't see any numbers below.One method to solve this is to replace each of the numbers in the inequality, do the calculations, and then check whether the inequality is satisfied. Another method is to get the general solution for the inequality, then check with each of the numbers.


Which numbers in the set 2345 are the solutions to the inequality 16 3x 5?

That's not an inequality; an inequality needs a "greater than" or a "less than" sign. Those must have gotten lost when you typed the title. Anyway, basically you are supposed to replace the numbers one by one in the inequality, do the calculations, and see whether the resulting statement is true or not.


How do i write all real numbers in an inequality?

You cannot list them: unless the inequality is trivial, since there are infinitely many real numbers in any range. You need toidentify the lower bound;determine whether or not the lower bound is included (


How do you know whether to use an open circle or a closed circle when graphing an inequality and why?

An open or closed circle are used to graph an inequality in one variable. An open circle is used if the value at the end point is excluded from the feasible region while a closed circle is used if the value at that point is within the accepted region.

Related questions

How do you decide whether a number is a solution of an inequality?

Substitute the number in place of 'x' in the inequality, and see whether the statement you have then is true.


How do you decide if a number is a solution to the inequality?

Substitute the number in place of the variable, and see whether the inequality is then a true statement.


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The polarity or charges of compounds will determine if a compound would dissolve in water, where compounds with opposite charges within their molecules dissolve in water.