Answer:
D. they are parallel
Step-by-step explanation:
A plane can be defined by a point and a direction vector that is perpendicular to the plane. If two planes have the same direction vector (perpendicular line), then they are either the same plane or they are parallel.
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13.5≤1.2c+3
10.5≤1.2c
8.75≤c
10 is 20% of 50.
50 beats per minute
The radius is 2 units, and the graph is symmetric about the line Theta = StartFraction pi Over 2 EndFraction. Its answer A