Answer:
A) Commutative
Step-by-step explanation:
The Associative has to do with re-grouping numbers. There are only two numbers so this does not apply here. Commutative is where you change the order; that's what the equation is demonstrating.
Step-by-step explanation:
A=a+b/2
2×A=a+b
2A=a+b
2a-a=b
a=b
hope it helps
I thin the answer's B, 4/13
Answer:
b
Step-by-step explanation:
Answer: option (b)
1 billion = 1, 000, 000, 000
In scientific notation, a number is rewritten as a simple decimal multiplied by 10 raised to some power n.
10 =101
100= 102
1, 000 = 103
1, 0000 = 104.
..............
Therfore 1 billion can be written as
1 billion =1, 000, 000, 000=10^{9}
Then 1.5 billion = 1.54 10^{9}
Hence option (b) is the correct answer
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