The number 1.84 x 103 has three significant figures, 1.84. The 103 part of the number does not count when determining significant figures.
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The answer for 600x190 is 114,000. Since both 600 and 190 have two significant figures, the answer should be rounded to two significant figures as well.
The LEFT zeros are place holders, which are not contibuting to significance.0.0360 = 3.60 X 10-2So, actually, there are 3 significant digits. The '3' and '6' and the '0'; this one -AFTER the 6- is not a place holderbut an indicator of the precision of the number - a significant digit.0.036 has 2 significants, and 0.0360 has 3 significant numbers.
Three significant figures of 1.702 x 10^5 are 1.70 x 10^5.
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