how many significant digits are in 2.80 * 10^5
6.0000 * 10^7
5*10^4
and
1.6*10^-3?

Question

how many significant digits are in 2.80 * 10^5
6.0000 * 10^7
5*10^4
and
1.6*10^-3?

anonymous · Answer

3,5,1,2
Try to review your sig fig rules :/

anonymous · Answer

so i know that 10^5 means there are 5 sig figures. So is the first one 280,000,000?

anonymous · Answer

is that right?

directrix · Answer

I don't know. I will have to read up on significant digits. What I am trying to understand now is if this question is 4 different questions about significant digts. @Amenah

anonymous · Answer

oh, you have to find the number of significant digits in each of the 4 problems. They are separate problems, but have the same directions.

directrix · Answer

3 for the first one.

directrix · Answer

5 for the second

anonymous · Answer

If 10^5 is alone, it would only have 1 sig fig, unless there is a decimal after the last 0. In that case, there would be six sig figs.

directrix · Answer

1 for the 3rd problem.

anonymous · Answer

so the 1st one is 6 or 3?

directrix · Answer

2 for the last one.

So, I got the same results as @Grazes

anonymous · Answer

ok, can you explain how you got those, please?

directrix · Answer

@Amenah 

>>so the 1st one is 6 or 3?

3 as stated by @Grazes

anonymous · Answer

ok

anonymous · Answer

thank you both so much!

anonymous · Answer

bit.ly/18v99V5

anonymous · Answer

If you wish to review the laws.

anonymous · Answer

thanks, i'll bookmark it!