Simplify the expression 6C5
a. 6
b. 24
c. 30
d. 720

A

Step-by-step explanation:

Using the definition

n =

where n! = n(n - 1)(n - 2)....... × 3 × 2 × 1

6 =

      = ← cancel 5(4)(3)(2)(1) on numerator/ denominator, leaving

      = 6

yes because there is exactly one y value for every x value

for function there can't be more than one value for every x value

what do u need to know

step-by-step explanation: