A box of old books contains 6 mysteries, 4 biographies, and 2 children’s books. Which of the following can be used to determine
1 answer:
<h2>Answer:</h2><h2>The probability of choosing a mystery book from the box, replacing it, and then choosing a biography = 
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Step-by-step explanation:
A box of old books contains mysteries, biographies, and children’s books.
The number of books in mysteries = 6
The number of books in biographies = 4
The number of books in childrens = 2
The total number of books = 12
The probability of choosing a mystery book from the box =
The probability of choosing a biography book from the box =
The probability of choosing a mystery book from the box, replacing it, and then choosing a biography = ( ) (
) ( since it is with replacement)
=
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Answer:
Option C.
Step-by-step explanation:
It is given that Stella rewrites −212+3.7 as 3.7−212.
We need to find which property did she use.
According to commutative property of addition,
Where, A and B are any real values.
In the given expression −212+3.7, A=-212 and B=3.7.
Using commutative property of addition, we get
So, she used commutative property.
Therefore, the correct option is C.