Answer:
It should have 20 vertices, and the name is dodecahedron
Answer:
The model on the top right.
4 Americans can arrange themselves in 4! ways.similarly ,3 Frenchmen can arrange themselves in 3! ways.3 Englishmen can arrange themselves in 3! ways.now these 3 groups of same nationality people can be arranged among themselves in 3! ways.so total number of ways = 3!4!3!3!
Answer:
It is the 3rd one 9/5y+9.
Answer:
Step-by-step explanation:The largest number is 10,080,000 then 1,224,000 the smallest number is 1,215,678
