Question

question 2 (2 points)
round off the answer using significant figures (2.2222 x 10^3 mm)(2.00 x 10^3 mm) =
how many sf in the second number?
2
3
4
5

Explanation:

Step1: Recall significant - figures rule

Non - zero digits and zeros between non - zero digits are significant. Trailing zeros in a number with a decimal point are significant.

Step2: Analyze the second number

The second number is $2.00\times10^{3}$ mm. The digits 2, 0, and 0 are significant.

Answer:

B. 3