When adding or subtracting, follow these steps to find a sig figs answer:
1) Add/Subtract numbers regularly.
2) Determine which measurement has the least decimal places.
3) Round final answer to the same number of decimal places.
When multiplying or dividing, follow these:
1) Count the number of sig figs in the numbers you are multiplying/dividing.
2) Multiply/Divide regularly.
3) Round final answer to the same number of sig figs as the measurement with the fewest sig figs.
Because the base of a cone is round, it is the only three dimensional figure with only one vertex.
Well, in science you always need significant digits: 0 has no significant digits, so we round to the nearest number with 1 significant digit: namely, -1 or 1.
It is a sphere
145.75+2.3*10^-1 145.75+0.23 145.98 As 2.3*10^-1 has two significant figures, our answer must have two significant figures 145.98 150 As the 5.98 rounds up to the nearest significant figure 1.5*10^2
circle or sphere
Round 12 to 1 significant figure is 10.
100 is already rounded to one significant figure.
200 Explanation: 2 is the one significant figure. The zeros are not significant. Round up because it is closer to 200 than to 100.
It then is 40000 to one significant figure
It is 0.01
7000
2,000
8.87
0.4
It is: 8.7
0.9
0.1