Question

how many significant figures are in the measurement 5,000,000 km? *
1
2
3
4
5
6
7
how many significant figures are in the measurement 1001 grams? *
1
2
3
4

Explanation:

Step1: Recall significant - figures rule for whole numbers with trailing zeros

For a whole number like 5,000,000 without a decimal point, the trailing zeros are not significant. Only the non - zero digit 5 is significant. So, 5,000,000 has 1 significant figure.

Step2: Recall significant - figures rule for non - zero and embedded zeros

For the number 1001, all non - zero digits (1) and the embedded zero between non - zero digits are significant. So, 1001 has 4 significant figures.

Answer:

1. A. 1
2. D. 4