Now, use your research to decide which business is the best choice for this community. Explain your choice in two to three sente
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1. The given rectangular equation is .
We substitute .
Divide through by
2. The given rectangular equation is:
This is the same as:
We use the relation
This implies that:
3. The given rectangular equation is:
This is the same as:
We use the relation and
This implies that:
Divide through by r
4. We have
We substitute and
This implies that;
5. We have
We substitute and
This implies that;
Not necessarily. 
and 
may be linearly dependent, so that their span forms a subspace of 
that does not contain every vector in .
For example, we could have
and 
. Any vector 
of the form 
, where 
, is impossible to obtain as a linear combination of these and , since
unless
and 
.
For example, we could have
unless