Answer:
56
Step-by-step explanation:
Given data:
{1 ,2 ,4, 6, 8, 9}
Formula for combinations is used since the order does not matter and repetition is allowed.
nCr = (n + r -1) /(r! * (n-1)!) where n is the total number of items and r is the items to be picked
6C3 = (6 + 3 - 1)! /(3! * (6 -1)!
6C3 = 8!/(3! *5!) Simplifying the factorials)
6C3 = 40320/(6*120)
6C3 = 40320/720
6C3 = 56
45,697,600 I tried to figure this out
Answer:
f(4) = 22
Step-by-step explanation:
I think that you type wrongly.
we have f(1) = -5
and f(n) = f(n-1) + 9
Find f(4)
Then
with n= 2 we have f(2) = f(1) + 9 = - 5+ 9= 4
with n= 3 we have f(3) = f(2) + 9 = 4 + 9= 13
and finally with n= 4 we find f(4) = f(3) + 9 = 13+ 9= 22
So f(4) = 22
Hope you understand.
Answer:
16 square inches
Step-by-step explanation:
4 x 4 = 16
Answer:
x=4 y=3
Step-by-step explanation:
