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Earn +20 ptsQ: How many significant figures are in 4.0 X 10-2?
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How many significant figures 40?
One
What is 40 divided by 490?
0.0816
What is 170 minus 40 percent?
170 - (40%) = 102
What is 138.6 in 2 significant figures?
140 This is because you take the first two numbers (in this case, they are 100 and 30) and these are the first two figures. You then round the 30 to a 40, because of the 8. This then gives you 140.
How do you write 40 percent as a fraction?
40% =0.44/102/5
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