Evaluate using Pascal's Triangle. $\left( \frac { 8 } { 7 } \right)$
A)8
B)6
C)10
D)9
E)7

Question

Evaluate using Pascal's Triangle.   $\left( \frac { 8 } { 7 } \right)$  
A)8
B)6
C)10
D)9
E)7

Quizplus · Accepted Answer

Pascal's Triangle is a triangular array of binomial coefficients. The binomial coefficient $\binom{n}{k}$ is the number of ways to choose k elements from a set of n elements. In this case, we want to evaluate $\binom{8}{7}$, which is the number of ways to choose 7 elements from a set of 8 elements. This is equal to 8, so the correct answer is A.

Evaluate Using Pascal's Triangle (87)\left( \frac { 8 } { 7 } \right)(78​)

Evaluate Using Pascal's Triangle $\left( \frac { 8 } { 7 } \right)$