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Sagot :
[tex]3.57\cdot10^9[/tex]
Explanation:
Since a scientific notation has the format: decimal number * 10 ^ power
Step 1:
You need to convert the number to a decimal number with only 1 number before the dot (here the number is 3)
=> 3. 570 000 000
Step 2:
Count how many numbers there are after the dot and use that number as the exponential power for the 10
(here there is 9 number after the dot ~ 570 000 000)
=> 10^9
Step 3:
Disregard all the 0 that comes after the last number that is different to after the dot (here the last number that isn't a 0 after the dot is 7)
=> 3.57
Step 4:
Put it all togerther
=> 3.57 * 10^9
Important things:
. The scientific number is written with only one number before the dot
. The power of 10 depends on the number of numbers after the dot (including the 0 that you don't need to write afterward)
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