Answer:
Step-by-step explanation:
We can use combinations
20 choose 4:
20!/(16!*4!)
= (20*19*18*17)/4!
= 4845
Answer: f(3):1
Step-by-step explanation:
Y+3x=2----equation1
y-2x=-3-----equation 2
e1-e2
(y+3x)-(y-2x)=2-(-3)
y+3x-y+2x=5
5x=5
x=1
sub x=1 into equation 1
y+3(1)=2
y=-1
If what i’m seeing is correct, you got this question wrong because you found the interval notation for the DOMAIN of this problem. the question is asking for the RANGE, which would be [2,*positive infinity*]
