Algebra-2

The missing number is 6.

 

Here's the reasoning: In Pascal's Triangle, each number (except for the 1s on the edges of each row) is the sum of the two numbers directly above it in the previous row.

 

For the seventh row where the missing number is located, we look at the sixth row which has the numbers 1, 5, 10, 10, 5, 1.

 

The number we need to find in the seventh row has the two numbers 5 and 1 directly above it from the sixth row. When we add 5 and 1 together (5 + 1), we get 6.

 

So the completed Pascal's Triangle would be:

                    1

            &nbs...