How to know if an equation is false, true, or an open scentence

2 answers:

7 0

To know when a equation is false, it is simply incorrect. When a equation is true, it will be correct. An open sentence is a statement which contains a variable, and becomes either true or false, depending on the value that replaces the variable. Hope this helps!

beks73 [17]3 years ago

4 0

Well it is true if the problem is the right with the right answer. If not you have a false eqaution.

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Answer: -40 < T < 140

From the question, we are informed that the gas that the driver uses freezes at −40° F and evaporates at 140° F.

To get the inequality to represent the temperatures at which the gas in the truck will remain in liquid form, we should note that the temperature will be lower than 140°F but more than -40°F. This can be expressed as:

= -40 < T < 140

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