How do you simplify #\frac { ( 3- \sqrt { 9} ) - ( - 8- 0.4) } { - 3}#?

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Answer 1 · 2018-03-22T20:41:05

-2.8

#{(3-sqrt9)-(-8-0.4)}/-3#

#sqrt9=3# so #(3-sqrt9)=(3-3)=0#

#{0-(-8-0.4)}/-3#

two negative signs cancel out to give a positive number

#{8+0.4)/-3#

#{8.4)/-3#

It's generally good to not have negative numbers in the denominator.

#- {8.4)/3#

This fraction can be expressed in decimal form.

#- {8.4)/3=-2.8#