Answer:
11.82 kilometers in Luis's journey in total
Step-by-step explanation:
As per the statement:
To visit his grandmother
Distance Luis takes a train 6.37 kilometers
Distance Luis takes a car 5.45 kilometers.
We have to find the total distance.
Substitute the given values we have;
km
Therefore, 11.82 kilometers in Luis's journey in total
Answer:
The lines are perpendicular
Step-by-step explanation:
we know that
If two lines are parallel, then their slopes are equal
If two lines are perpendicular, then their slopes are opposite reciprocal (the product of their slopes is equal to -1)
we have
----> equation A
isolate the variable y
Divide by 7 both sides
The slope of the line A is
----> equation B
isolate the variable y
Divide by 3 both sides
The slope of the line B is
Compare the slope of both lines
so
----> the lines are not parallel
Find the product of the slopes
----> the lines are perpendicular