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It is 12300000
3.2*1.05=3.36=3.4(sf) With two significant figures
I Believe it would be 2.32 x 106.
149.1290861 is 149.13 with 2-place accuracy.
I'm not so sure you can, until you tell me something about the method.
Express it as 9.80 x 10^2
Used to express hesitation or uncertainty.
Percentage uncertainty is calculated by taking the uncertainty value and dividing it by the measured value, then multiplying by 100 to express it as a percentage. The formula is: Percentage uncertainty = (uncertainty / measured value) * 100
The number 6.300 has four significant digits. We must assume that the only reason for including the two zeroes at the end is to express the precision of the measurement (whatever it was that was measured to yield this number). If you were only confident about the first two numbers, you would express it as 6.3 rather than 6.300 as you did.
"Questoning" is likely a typo or misspelling of "questioning," which means to ask about or express doubt or uncertainty about something.
The homophone for "weather" is "whether," which is used to introduce a choice between alternatives or to express uncertainty.
50
320
Sadly, it is measured in Giga-tons. The alternate way to express this Disaster is Giga-Tonnes.
Energy - of any type - is measured in Joules.
6.21 with one significant figure is just 6
It is 3.01