X^2 + 4x -21
= (x +7)(x - 3)
hope that helps
To find in how many ways this can be done, we can use the method of combination.
As the customer have to choose 2 out of 3 appetizers, the combination would be 3C2.
For 4 out of 5 main courses, the combination wouls be 5C4.
For 6 out of 8 desserts, the combination would be 8C6.
We can then combine them into a single equation to find the answer:
3C2 x 5C4 x 8C6
=420
Therefore, the answer is 420 ways.
Hope it helps!
Area = lw
So 7(4) =28
Area = 28
The answer is C.
Answer:
Step-by-step explanation:
