Answer: Choice B)
The points A, C and D form a triangle which is the front face you see in the pyramid. Point F is not on this triangle at all. Point F is towards the back at the base of the pyramid away from this front face. So we consider A,C,D,F collectively as a whole to be not coplanar. If we ignored the point F, then we can say that A,C,D are coplanar.
nice.......................
To do this, we first want to see how many participants there are in total by adding both males and females.
Now we know that there were 220 total participants, but only 121 were females.
This allows us to set up the fraction 121/220= the percent female.
or 55%
Answer: x= -32/5 and y=16/5
Hope this helps!
To figure this out you would just add 2 1/3 feet and 3 2/3 feet. Which would give a total of 6 feet tall.
