College

Select the correct answer.

What is the solution to the problem expressed to the correct number of significant figures?

[tex]\frac{12.0}{7.11}=?[/tex]

A. 1.688
B. 1.69
C. 1.7
D. 1.70

Answer :

To solve the problem, follow these steps:

1. Write the division:

[tex]$$\frac{12.0}{7.11}.$$[/tex]

2. Compute the quotient. Dividing the numbers gives a value of approximately [tex]$$1.68776\ldots$$[/tex]

3. Determine the number of significant figures to use. Both numbers, [tex]$12.0$[/tex] and [tex]$7.11$[/tex], are given with 3 significant figures. Therefore, the final answer should also be expressed with 3 significant figures.

4. Round the result to 3 significant figures. Looking at the computed value, [tex]$$1.68776\ldots,$$[/tex] the third significant figure is the digit 7 and the next digit is 8, which means the 7 rounds upward. Thus, the rounded result is:

[tex]$$1.69.$$[/tex]

The correct answer is therefore [tex]$\boxed{1.69}$[/tex].