Answer:
1/2
Step-by-step explanation:
12 can go into 648 54 times. :)
6:15:21
6:15:21= 2:5:7
<em>(when divided by 3)</em>
Answer:
Option D is correct that is The Slopes of two lines are negative reciprocals.
Step-by-step explanation:
Perpendicular lines are the lines which intersect each other at right angle or make 90° angle with each other.
we that the Slope of perpendicular lines are equal to -1
Therefore, Option D is correct that is The Slopes of two lines are negative reciprocals.
