Question

question 1 (2 points)
round off the answer using significant figures (2.2222×10³ mm)(2.00×10³ mm)=
how many sf in the first number ?
2
3
4
5

Explanation:

Significant figures include all non - zero digits. In the number $2.2222\times10^{3}$, the digits 2.2222 are significant. Counting these digits, there are 5 significant figures.

Answer:

D. 5