Consider for a moment building a tree with all possible choices. The first row would contain 8 books (each possible choice for the first book). Then, the second row would contain 7 books for each book in the first row (the choices possible for the second book). Otherwise, it would be 8*7. Following this principal, we continue to multiply down to 1. 8*7*6*5*4*3*2*1. This is also known as 8!, a factorial.
Finally, 8! = 40,320
Answer:
D. taking two marbles from a box without replacing the first marble are dependent events
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B: nine and one over two ft
Answer:
10
Step-by-step explanation:
Any number subtracted by its self will be zero.
For example:
1-1=0
2-2=0
3-3=0
4-4=0...
Answer:
Scalene
Step-by-step explanation:
all sides are different lengths
