Answer:
ok
Step-by-step explanation:
Answer:
Commutative
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They both can be divided by 2 to make it 7: 28. Then, it can be divided by 7 to make it 1:4
Answer:

Center of mass at 
Step-by-step explanation:
Given a set of objects
located at the points
The moments Mx and My are calculated as follows.

and the Center of mass is given at the coordinates
where M is the total mass of the system.
We have that m1=3, m2=4 and m3=3, so M = 3+4+3 = 10.
We have that m1 is at point P1(2,-6), m2 at point P2(-3,2) and m3 at point P3 (3,4), then


Then, the center of Mass is at 