Answer:
I took the Quiz and got 19,958,400 ways wrong from the previous answer the real answer is 496 ways
Step-by-step explanation:
The number of different ways that you can put 8 books on the shelf will be 495.
A permutation is an act of arranging items or elements in the correct order. Combinations are a way of selecting items or pieces from a group of objects or sets when the order of the components is immaterial.
Then the combination is given as,
⇒ ⁿCₐ
Where n is total sample and a is the selected sample from n.
You have 12 books, and you want to put 8 on a shelf in your room.
Order does not matter to you.
Then the number of different ways that you can put 8 books on the shelf will be
⇒ ¹²C₈
⇒ 12! / [(12 – 8)! x 8!]
⇒ 12 x 11 x 10 x 9 x 8! / (4 x 3 x 2 x 1 x 8!)
⇒ 11 x 5 x 9
⇒ 495
Thus, the number of different ways that you can put 8 books on the shelf will be 495.
More about the permutation and the combination link is given below.
https://brainly.com/question/11732255
#SPJ5
