Final answer:
The customer can create 126 different combinations of four vegetables from a selection of nine.
Step-by-step explanation:
The number of possible outcomes when choosing four different vegetables from a set is a problem of combinations. As there are nine vegetable choices and a customer chooses four, we use the combination formula, which is:
C(n, k) = n! / (k!(n-k)!)
For this question, n is 9 (total number of vegetables) and k is 4 (the number of vegetables chosen).
Thus:
C(9, 4) = 9! / (4!(9-4)!) = 9! / (4!5!) = (9×8×7×6) / (4×3×2×1) = 3024 / 24 = 126.
Therefore, the customer has 126 different combinations to choose from.