Uhm ok
the answer is 5 although u probably don’t need that
Answer: 1) 5040 and 2) 165
Step-by-step explanation:
1) Here total number of letters = 10
The number of permutations that can be formed using 4 letters at a time
= P (10, 4)
= 
= 
= 
= 
= 10 × 9 × 8 × 7
= 5040
2) Here the total number of machine = 11
The different combinations of machines can Geoff choose from to use
= 
= 
= 
= 
= 11 × 5 × 3
= 165
C.
An example of this is:
a² - b²
Where both terms have an even power and there are only two terms.
Ur answer should be C because it tells more about the question and makes more of a statement.