help me......pls
2006-06-09 16:35:09 · 4 answers · asked by Anonymous in Science & Mathematics ➔ Chemistry
It's the measure of how accurate your answer is. An answer of 2.3 would be two significant figures, while 2.30 would be three significant figures. The difference is one is accurate to the tenth and the other to the hundredth. You also use significant figures for exponents, so instead of saying 23100, you'd say 2.31 * 10^4.
2006-06-09 16:41:36 · answer #1 · answered by Anonymous · 0⤊ 0⤋
Significant figures arise from the accuracy of the measuring tools used to determine the measurements.
If I weighed myself on a scale and determined my weight to be 80 kilograms on a scale that was incremented in kilograms, I might notice that the needle was pointed in between 80 and 81 on the dial. If it was in the center I would say, "Hah, I weigh 80.5 kilograms". I could not say "I weigh 80.566488 kilograms" because the scale is not incremented to give meaningful measurements at that precision.
The last significant figure has some uncertainty associated with it. I hope this helps.
2006-06-10 00:24:17 · answer #2 · answered by Anonymous · 0⤊ 0⤋
well, if u r referring to body figure,, it would be a plus size person,, one with some substance to them,,like myself
2006-06-09 23:38:27 · answer #3 · answered by annie 3 · 0⤊ 0⤋
its a rounded amount of decimal places a number has. for example: 2.00 g X 3.456 g= # of decimal places of the smaller number.
2006-06-11 11:10:22 · answer #4 · answered by Anonymous · 0⤊ 0⤋