It’s -4 because you need to like distribute then add like terms, etc.
The number of permutations of the 4 different letters, taken two at a time, is given by:
Answer:
This system has one answer.
Step-by-step explanation:
This system only has one answer which are: x=1 y=2
Hope this helped! :)
Answer:
Step-by-step explanation:
8
412 + 162 + 347 = 921. Because it is closer to 900 than 1,000, the answer is 900.
