Answer:
Option A
Step-by-step explanation:
Both brackets must have minus since it has to be shorter and narrower.
So that leaves us with Options A and D
D is expanded wrong since -2x+-10x =-12x and not -8x.
So the answer is Option A
Answer:
Step-by-step explanation:
B) 5
Answer:
according to me, i feel like the first one best makes sense
"n choose k" gives you the number of possible unique combinations...
n!/(k!(n-k)!)
n=number of elements to choose from and k=the number of elements that you choose...in this case:
7!/[2!(7-2)!]
7!/[2!5!]
21
There are 21 possible different two question combinations that she can pick.
Answer:
4
Step-by-step explanation:
the answer is 4
I hope this is the answer
