Question #bcbfc

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Sep 23, 2016

#absA<=7.3#

Explanation:

The answer is #absA<=7.3#. To show this, remember that
absolute value inequalities can be written as two inequalities.

Write the first as given, but without the absolute value sign.
#color(red)(A<=7.3)#

Write the second with a "flipped" direction of the inequality and a negative on the right side.
#color(blue)(A>=-7.3)#, which can also be written as #color(blue)(-7.3<=A)#
Note that the 2nd is just a "flipped" version of the 1st.

Combining #color(blue)(-7.3<=A)# and #color(red)(A<=7.3)# gives

#color(blue)(-7.3<=)color(purple)Acolor(red)(<=7.3)#

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