why is it important to keep track of significant numbers?

Question

please help it is very urgent

Answer 1

sig figs are very important b/c it tells how accurate the number is. the more sigfigs, the more accurate.

the last sigfigs is the least accurate, it is a estimation, the numbers before it are exact....for example, in 4.327, the seven is a guess, the 4.32 is exact.

get it?

-chai

Answer 2

Significant figures represent the accuracy of the measurement. If you express a number as 0.6, that could indicate any range from 0.55000000001 to 0.6499999999 rounded to one decimal place. But, if you express it as 0.6000000, that represents a much more precise measurement.

As a side note, I am not familiar with the rule that the last significant figure is an estimation. I do not believe this is correct. I think the writer was trying to express that it may have been rounded off from a longer number, like my example above: 0.6 could be 0.5500000001 rounded off to one decimal place.

Answer 3

it keeps track of error. if u used all the number ur calculator gave u then u are using false values.