- I’m assuming the expression implies the following:
(1-n)/(n^2 - 1)
The steps goes as follows:
= -(n-1)/(n^2-1) (factored a negative out)
= -(n-1)/[(n+1)(n-1)] (Factored denominator into a difference of squares, but don’t just blindly accept the fact, expand it and you should get the original denominator)
At this point, the (n-1) terms cancel, as you should know: a real number, besides 0, over itself is 1.
= -1/(n+1) , which is the answer
Note: You could also see it as 1/-(n+1) or 1/(-n-1)
<span>the answer is 21 if that's a choice
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<h2>
The race is 1.2 miles long</h2>
Step-by-step explanation:
The first leg is 3/10 mi, the second leg is 1/2 mi, and the third leg is 2/5 mi.
Now we need to find length of race
The race is 1.2 miles long
The answer is C, 4.
you combine like terms and that is the answer you get.
Answer:
1. -5<1
2. -4<0
3.-6<+4
4.2>0
5. -8>-12
6. -34<-16
7.0>-9
8. +11=+11
Step-by-step explanation:
hope this helps
