Answer:
A. when the plane passes through a pair of vertices that do not share a common face
Step-by-step explanation:
The cross section will be a parallelogram if two pairs of opposite faces are intersected. Having the plane contain the space diagonal, but no other vertices, is one way to ensure a (non-rectangular) parallelogram.
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The only vertices not sharing a common face are the ones at opposite ends of a space diagonal. If the plane intersects both of those, it will contain the space diagonal.
Answer:
D)Both parabolas open to the right, and 
is wider than 
Step-by-step explanation:
Standard equation of parabola :
If a < 0, then the parabola open downwards and if a > 0, then the parabola open upwards.
If a < 0, then the parabola open left and if a > 0, then the parabola opens right
Given equations : 
and 
and 
in both the equations a>0
So, Both parabolas are open to the right.
Refer the attached graph
---- Red
--- blue
So, is wider than
So, Option D is true
Answer:
D. 64
Step-by-step explanation:
I calculated it logically
Answer:
THE ANSWER IS 12
Step-by-step explanation:
HOPE THIS IS HELPFUL Ф
