The number of possible pairings of 2 objects selected from a set of x objects can be modeled by p(x) = 0.5x(x - 1). A

_Number of objects, x| Possible Pairings, p(x)
|__2__|___1___|
|_4___|6__|
|__9_. |___28___|
|13___|__78|

B

_Number of objects, x__|Possible Pairings, p(x)_
___2 |___1__)
5 |10
8 |28
12 |___66

C

_number of objects, x__|Possible Pairings, p(x)
___2 ___1
3 ___3
7 ___22
10 78

D

_Number of objects, x_| Possible Pairings, p(x)
2 ___1
4 ___6
10 ___44
12 ___66

idk

step-by-step explanation:

3

step-by-step explanation:

divide 13.5 by 9 to get the scale factor. it equals 1.5

2 * 1.5 = 3

step-by-step explanation:

consider an orange peel: if you want to try and lay it flat, you have to stretch it, we know exactly how things are being stretched or squashed at any given point. we have many different map projections because each has different patterns of some projections can even preserve certain features of the earth without

she was supposed to add the hours(38.5) and multiply the amount of money she earned(7.50) resulting in $288.75 .

correct me if i'm wrong and if it is i'm truly sorry.