Answer:
12
Step-by-step explanation:
0 + 1 + 2 + 3+ 4 + 5 + 6 + 7 +8 + 9 + 10 + 11 seems to equal 66. That means there are 11 + 1 = 12 people (don’t forget to count the person who shakes 0 hands)
Answer:
A. (3, 8) and 
B. (2, 4) and 
Step-by-step explanation:
Midpoint formula: 
Distance formula: 
A. plug in the points in the formulas
(4, 7) and (2, 9)
Midpoint:

Length:

B.
(5, 5) and (-1, 3)
Midpoint:

Length:

Can you consider marking my answers as brainliest lol it would mean a lot. Hope this helped.
Answer:
An aeroplanes velocity changes from 1250m/s as it comes down to land . It accelerates at 4.9m/s² . Calculate how long it took to come to a stop ?
Step-by-step explanation:
i am sorry in never answeres ur question but pls can u help me i am struggling
You are right about the domain.