Question

The number 4,450,000.0 has how many significant figures?
1) 1
2) 3
3) 5
4) 7

Answer 1

The number 4,450,000.0 has seven significant figures.

Step-by-step explanation:

The number 4,450,000.0 has seven significant figures.

Significant figures are the digits in a number that carry meaning about its precision. Zeros can be significant depending on their position. In the number 4,450,000.0, all digits (4, 4, 5, 0, 0, 0, 0) are significant because they are all non-zero and not placeholders. The decimal point does not impact the number of significant figures.

Therefore, the correct answer is 4) 7.