M a t h Choose all of the expressions that are equal to −9.

the distance from zero to nine
−(−9)
the opposite of nine
|−9|
−|9|
−|−9|

 -|-9|, -|9|, and the opposite of nine

Step-by-step explanation:

The absolute value symbol is | |. |-9| is 9 but add that - to it and it's -9. The absolute value of 9 is 9, add the - to it to get -9.

the opposite of 9 is -9.

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ghjmutmum

step-by-step explanation:

not only in mathematics, scientific proof also are required in the other field of science. also maths proofs are of particular structure, containing steps and logics. so proving is like doing science, it is science. that's why it is important to prove. 

an inaccurate proof leads to errors, or stating results that are not accurate.  which wil mess the probelm up you dont want this