Question

how many significant figures are in the measurement 10.1000 cm? * 5 points
o 1
o 2
o 3
o 4
o 5
o 6
how many significant figures are in the measurement 210 cm? * 5 points
o 1
o 2
o 3

Explanation:

Step1: Recall significant - figure rules

Non - zero digits are always significant. Zeros between non - zero digits are significant. Trailing zeros after a decimal point are significant.
For 10.1000 cm:
The non - zero digits 1 and 1 are significant. The zero between 1 and 1 is significant. The three trailing zeros after the decimal point are significant. So there are 5 significant figures.
For 210 cm:
Non - zero digits 2 and 1 are significant. The trailing zero is not significant as there is no decimal point. So there are 2 significant figures.

Answer:

1. E. 5
2. B. 2