Assuming order doesn't matter, we can use the probability formula nCr. Using a calculator, you get that there are 210 possible combinations. However, if order did matter, then you would use nPr, in which case would the answer be 5040.
:)
Answer:
1 12/100
Step-by-step explanation:
Answer:
2/60 I think
Step-by-step explanation:
5.
-4n+ 7+ 2n= 1
⇒ (-4n+ 2n)+ 7= 1 (combine like terms)
⇒ -2n= 1-7
⇒ -2n= -6
⇒ n= -6/(-2)
⇒ n= 3
Final answer: B. 3~
6. 4(y-4)= 8
⇒ y-4= 8/4
⇒ y-4= 2
⇒ y= 2+4
⇒ y= 6
Final answer: D. 6~
Answer:
Step-by-step explanation:
X+x+1+x+2=4x-9
3x+3=4x-9
X=12
