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

add the numbers under frequency to find the total number:

5 + 8 +7 + 4 + 0 +1 = 25

the answer is 25.

1st integer x

2nd integer x+1

3rd integer x+2

4th integer x+3

x+x+1 +x+2+x+3 =74

combine like terms

4x+6 = 74

subtract 6 from each side

4x = 68

x = 17

the integers are 17,18,19,20

if i knew id you bro,, my bad

a: kite

step-by-step explanation:

figure lmno is located at l (1, 2) m (3, 2), n (3, 0), and o (0, −1). use coordinate geometry to best classify quadrilateral lmno.