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Answer:
Hence, there is 5 gallons of fuel Roselyn needed for her journey.
Step-by-step explanation:
Since we have given that
Speed at which Roselyn wants to drive her car = 60 miles per hour
Time taken by her car = 1.5 hours
As we know the formula for "Distance-Speed " :
Her car has fuel efficiency = 15 miles per gallon
Number of gallons of fuel is given by
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EF ( x1=0, y1=1), (x2=3, y2=3)
JK (x1=8, y1=2), (x2=6, y2=5)
Slope of a line=(y2-y1)/(x2-x1)
Slope of EF =( 3-1)/(3-0)= 2/3
Slope of JK =(5-2)/(6-8)= 3/-2
Since the slopes of those lines are negative reciprocal the lines are perpendicular
Line EF is perpendicular to JK