-2a - 6
Hope I helped!
~ Zoe
2 fathers and 2 sons
1 grandfather, 1 father, 1 son
3 people who each catch 1 fish
3 fish in total
when they get home they still have the 3 fish they caught, none were lost and none were gained. They always had only 3 fish.
Hope this helps, i tried to explain as best i could.
Answer:
24x²y²
Step-by-step explanation:
For k=0 to n, the k-th term of (a+b)^n is ...
(nCk)·a^(n-k)·b^k
You want the k=2 term for the n=4 expansion with a=2x and b=-y.
Then the third term of the expansion is ...
(4C2)·(2x)^2·(-y)^2 = 6·4x^2·y^2 = 24x^2y^2
_____
nCk = n!/(k!(n-k)!)
4C2 = 4!/(2!·2!) = (4·3)/(2·1) = 6
Answer:
$117.60
Step-by-step explanation:
Do this:
$864 1 $864
_____ x ____ = ______
1 5 5
Then divide $864 by 5
Then take $172.80 - $55.20
That will give you your answer.
