Final answer:
The product of 2.453 and 7.12 is 17.45136, which, when rounded to three significant figures, is 17.5.
Step-by-step explanation:
The correct option : b
The product of 2.453 and 7.12 is calculated by multiplying the two numbers together. To ensure we adhere to the rules of significant figures, we must look at the number with the least number of significant digits. The number 7.12 has three significant figures, while 2.453 has four significant figures. Therefore, we should round our answer to three significant figures.
The calculation proceeds as follows: 2.453 multiplied by 7.12 equals 17.45136. However, when we round this to three significant figures, the product becomes 17.5 (since the digit to the right of the hundredths place is 5, which means we round up).