the temp. inside your mother's deep freezer is set for -2 degrees F. The manufacturer guarantees the actual temperature will fall within 4 degrees F of the temp. to which the freezer is set. Write an inequality that can be used to describe this situation.
|t+2|

Question

the temp. inside your mother's deep freezer is set for -2 degrees F.  The manufacturer guarantees the actual temperature will fall within 4 degrees F of the temp. to which the freezer is set.  Write an inequality that can be used to describe this situation.
|t+2| < 4
|t-2| < 4

ash2326 · Answer

The temp set is -2 but Actual temp may be 4-2 or -4-2 so
temp should lie between -6 and 2
so
-6<t<2
Add all sides by 2
-4<t+2<4
This is
$$|t+2|<4$$

anonymous · Answer

okay, that's what I was thinking but I wasn't sure.  THANKS!

ash2326 · Answer

Welcome:D

anonymous · Answer

Would you mind helping me with my other question, please?