Find the nonpermissible replacement for N in the following expression :
-8/5n
2 answers:
The correct answer is


This is testing your knowledge on domain of rational functions.
To avoid division by zero, the denominator of the rational function

should not be equal to zero.
Therefore the non permissible number can be found by equating the whole denominator to zero. That is,

We can now solve for n, to obtain,

Hence that number is

We are given expression

we know that
this is rational expression
And any rational expression is undefined when it's denominator =0
so, for finding non-permissible values of n , we set denominator =0
and then we can solve for n
denominator is 5n

Divide both sides by 5

so, we get

So, the non-permissible replacement for n in this expression is 0.........Answer
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Step-by-step explanation:
first do the parenthesis
4x-3(3x+3x)>18
4x-3(6x)>18
4x-18x>18
-14x>18
I'm not sure if this helps but I tried
That would be 5, all you need to do is divide by 2 or mltiply by 0.5 to get half of a number
C) 88
Explanation: trust me
f(39)=65-100(39)
65-3900
= -3835