Answer:
A
Step-by-step explanation:
You can read 1≤x as: x is higher or equal to one.
option b,c,d and e are values smaller than one.
Since option A (1) is equal to one and<u> since we know that x can be equal or higher than one</u> then, that's the correct answer
31
We start with 16 matches between 32 people, then 8 matches between 16 people, then 4 matches between 8 people and 2 matches between 4 people and finally 1 match for the finals. The total is 31 matches
=
The coefficients are 8 , 12, 6, 1
The coefficients are 16, 96, 216, 216, 81
The coefficients are 27, 54,36 , 8
= x^4+4x^3y+6x^2y^2+4xy^3+y^4
The coefficients are 1, 4, 6, 4, 1
the yellow one