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# How many uncertain digits are present when some quantity is expressed in significant digit figures?

Updated: 9/22/2023

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Q: How many uncertain digits are present when some quantity is expressed in significant digit figures?
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### How many significant figures are in the quantity 400m?

3 significant figures

### Is .005843 6 significant figures?

.005843 has 4 significant figures. Expressed as six significant figures it becomes 0.00584300

### Does 213000 have six significant figures?

213000 has 3 significant figures. Expressed as six significant figures would be: 213000.

### When multiplying and diving measured quantities the number of significant figures in the result should be equal to the number of significant figures in?

the measured quantity with the least number of significant figures. For example, if you multiply a quantity with 3 significant figures by a quantity with 2 significant figures, your result should have 2 significant figures.

### How is 6 848 674 765 expressed in meters to 3 significant figures?

6,848,674,765 expressed in meters to 3 significant figures is: 6,850,000,000m

### What is 1050 to 3 significant figures?

It is already expressed as 3 significant figures which are 1, 0 and 5

3 of them.

1 of them.

### How do you write the weight 642000 to indicate that there are four significant figures?

642000 expressed as four significant figures is 6.420e5

2

### The atomic mass of Cu-63 is expressed to what number of significant figures?

The atomic mass of Cu-63 should be expressed to two significant figures, which are 63.