Answer:
C
Step-by-step explanation:
0 = 8 is a false statement which means the system has no solutions
The answer is 1 Bcuz u have to first plug in -4 for f then solve the equation by adding like terms and dividing
Answer:
a) Suppose that F is ordered in ascending order:
. Then, the complement of F can be written as

which is the union of a finite number of open intervals, then
is an open set. Thus, F is a closed subset of the real numbers.
b) Take an arbitrary element of F, let us say
. Now, choose a real number
such that
there are not other element of F, because
is less that the minimum distance between
and its neighbors.
In case that
we only consider
, and if
we only consider
.
Then, all points of F are isolated.
Step-by-step explanation:
27
Step by step explanation This is how I got the answer to your question and I gave you the solution I hope this helps you out
7
1.4x10^
Hope this helps!!!!!!!!!