ackson is given the expression below to simplify. Which expression is equivalent to Jackson’s expression?9x−4+4x+5x+19
2 answers:
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Answer:
Option c
Step-by-step explanation:
We are given that the post office is at the corner of first street and main street and they form right angled .
We have to find the distance travel by car B to reach Oak street from First street
Let x be the distance traveled by car B on First street to get to Oak street
In right angled triangle NOE
OE=14 miles
NO=x
Therefore, option c is true.
For this case we must find the solution of the following system of equations:
If we multiply the first equation by -2 we have the following equivalent system:
If we add the equations we have:
Thus, the system has infinite solutions.
Answer:
Infinite solutions