- 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)
18cm (A). Remember to get the radius when you have the circumference is to ALWAYS divide it by 2. 36/2 = 18
Answer:
troposphere
Step-by-step explanation:
got it right on edge
(Structure and Composition of the Atmosphere)
(Analyzing Characteristics of Atmospheric Layers)
(Assignment)
Answer:
Step-by-step explanation:
x = a-2by²
2by² = a-x
y² = a-x/2b
I have no clue I am in 7th grade I am sorry I have no idea what this is? :(