There is nothing attached
Answer:
B 12.68
Step-by-step explanation:
you will need to find the distance between each segment-
so the length of DC, CF, FE, ED

DC:
D(-2,-1) C(-1,2)

CF:
C(-1,2) F(1,1)

FE
F(1,1) E(2,-2)

ED
E(2,-2) D(-2,-1)

3.16+2.24+3.16+4.12= 12.68
ANSWER

EXPLANATION
The given product is:

We expand using the distributive property to obtain:

Extract the perfect squares to get:

Expand further to get;

This simplifies to,

Answer:
B: 6
Step-by-step explanation:
Find the mean:
5+8+4+7= 24
24/4=6