Answer:multiplying will give us 7 significant figures and addition will give us 3 significant figures
Explanation:
After multiplying the two numbers they resulting value will give a value in its 4 decimal places because both given values are in 2 decimal places. The 4 dp is gotten by the addition of the decimal places of both given numbers (2+2) and
The result of its addition will give us a value in its 1dp and 3 significant figures since the addition of 23.68 and 4.12 will give us 27.8
The sum of these numbers has four significant figures, and the product of these numbers has six significant figures.
From the question, we are to determine the number of significant figures in each of the answers
For the sum
The sum of 23.68 and 4.12
23.68 + 4.12 = 27.80
From some of the rules for determining if a number is significant
Therefore, 27.80 has four significant figures
For the product
The product of 23.68 and 4.12
23.68 × 4.12 = 97.5616
97.5616 has six significant figures
Hence, the sum of these numbers has four significant figures, and the product of these numbers has six significant figures
Learn more on determining Number of significant figures in a number here: https://brainly.com/question/24491627
