Answer:
X is the input to the function ... it appears that it is unrestricted...
it can be anything from -∞ to + ∞ (the domain) ..
in every case the output (range) is "0"
Step-by-step explanation:
Answer:
64=boys
Step-by-step explanation:
Boys to girls
4:5
80=girls
80÷5=16×4=64
You have to explain how you knew to use 55 and 120, not another option.
Hope it helped! :)
Pairs, in this case, relates to a group of 2 or more. We have 6 friends. Let's call them A,B,C,D,E,F. This will allow us to make a [some sort of] combination tree:
1. ABC against DEF
2. ABD against CEF
3. ABE against CDF
4. ABF against CDE
5. ACD against BFE
6. ACE against BDF
7. ACF against BDE
8. ADE against BCF
9. ADF against BCE
10. AEF against BCD
I believe there are 12 combinations... I just can't think of the last 2 though.
