If you use FOIL to multiply these two brackets, it will lead you what is exactly written (xa+xb+ya+yb)
so it is correct
A
Step-by-step explanation:
part A:
part B:
![Area_{_{surface}}=3.14*(15+9)=3.14*24=75.36[units^2].](https://tex.z-dn.net/?f=Area_%7B_%7Bsurface%7D%7D%3D3.14%2A%2815%2B9%29%3D3.14%2A24%3D75.36%5Bunits%5E2%5D.)
Answer:
Move it to 2 place to the right
Step-by-step explanation:
4.003×100
=400.3
It can be observed that the dot in front of 4 has been shifted in two times to the front giving us 400.3
But in the case of division,it will be two places to the left...
I hope you understand
C
D
B
A
that's the answers, from top to bottom. hope this helps!
