If x = –4, evaluate –x.
A.
8
B.
4 <----- i think its this one
C.
0
D.
–4
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OpenStudy (hellomynameiskam):
@haleyelizabeth2017 @DARTHVADER2900 @LunaTiger @Loser66 Can one of u guys help me
?
OpenStudy (hellomynameiskam):
ok thnx anyway :-)
OpenStudy (freckles):
yes the opposite of -4 is 4
OpenStudy (hellomynameiskam):
ok thanks
OpenStudy (hellomynameiskam):
can u help me with a couple more questions @freckles
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OpenStudy (freckles):
sure
OpenStudy (hellomynameiskam):
Simplify.
6 – [–(–1)]
A.
–7
B.
7
C.
–5
D.
5
OpenStudy (freckles):
well do you know what -(-1) equals?
OpenStudy (hellomynameiskam):
1 ?
OpenStudy (freckles):
right
so you have
6-[-(-1)]
6-[1]
drop [ ]
6-1
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OpenStudy (hellomynameiskam):
Simplify.
| –3.9| + | 3.9|
A.
–7.8
B.
0
C.
7.8
D.
8
OpenStudy (hellomynameiskam):
is 0 correct? my calculator says 0
OpenStudy (freckles):
|-3.9| is the number of units that represents the distance from -3.9 to 0
|3.9| is the number of units that represents the distance from 0 to 3.9
|a| is the number of units that represents the distance from a to 0 or you could say 0 to a
it doesn't matter
anyways distance is a positive or zero number
OpenStudy (freckles):
do you know how far -3.9 is from 0?
OpenStudy (hellomynameiskam):
4 ? or 3 ?
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