K=2. You have to divide 3.2 by 4, then divide both sides by 0.8, finally, you have your answer, K=2.
Answer:
<h3>
(ii) (x+2)²=7</h3>
<h3>
(iv) M²-1 = 0</h3>
<h2>
HOPE U UNDERSTOOD</h2>
★THANKS★
ANY DOUBTS? COMMENT PLEASE
I believe it’s the 3rd one
Answer:
This is your answer
Step-by-step explanation:
(For the second step I multiplied 6 and 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 