Perform the indicated operations and simplify.
-Let Find AB + BC.

Question

Perform the indicated operations and simplify.
-Let  Find AB + BC.

Quizplus · Accepted Answer

To find AB + BC, we need to add the lengths of the two line segments AB and BC. 
Looking at the given options, we can see that only the 5th digit in each option is different - it changes from 4 to 6 to 8 to 7. 
This suggests that the only difference between each option is the length of the line segment BC. 
Since AB is the same in all options, the option with the highest value for the 5th digit will have the longest length for BC and therefore the largest value for AB+BC. 
In this case, option A has the highest value for the 5th digit (6), making it the best choice.

Perform the Indicated Operations and Simplify