Answer:
All non zero digits count in significant digits.
(a) is correct option.
Step-by-step explanation:
Given that,
1.4 has 2 significant digits.
We know that,
Significant digits :
All non zero digits count in significant digits.
All zero which is present in between two significant digits it is also significant.
Leading zero is not count as significant.
Trailing zero is count as significant.
We need to find 1.4 has 2 significant digits as a result of which rule
Using given rules
1.4 has 2 significant digits it is follows the rule of all non zero digits count in significant digits.
Hence, All non zero digits count in significant digits.
(a) is correct option.
Answer:
False
Step-by-step explanation:
They are two different points. A way to check it is changing to cartesian coordinates, the formula to change from polar to cartesian is:
![x = rcos(\theta)\\y = rsin(\theta)](https://tex.z-dn.net/?f=x%20%3D%20rcos%28%5Ctheta%29%5C%5Cy%20%3D%20rsin%28%5Ctheta%29)
For the point ![(-4, \pi)](https://tex.z-dn.net/?f=%28-4%2C%20%5Cpi%29)
![x_1=-4cos(\pi)=4\\y_1=-4sin(\pi)=0](https://tex.z-dn.net/?f=x_1%3D-4cos%28%5Cpi%29%3D4%5C%5Cy_1%3D-4sin%28%5Cpi%29%3D0)
For the point ![(4,-\pi)](https://tex.z-dn.net/?f=%284%2C-%5Cpi%29)
![x_2=4cos(-\pi)=-4\\y_2=4sin(-\pi)=0](https://tex.z-dn.net/?f=x_2%3D4cos%28-%5Cpi%29%3D-4%5C%5Cy_2%3D4sin%28-%5Cpi%29%3D0)
![(4,0)\neq (-4,0)](https://tex.z-dn.net/?f=%284%2C0%29%5Cneq%20%28-4%2C0%29)
7/2 ÷ 14 ÷ 6 = 0.00694444444
Can you explain more about the question?
If He Has 9 Friends, Then Each Of Them Will Get 9 Stamps Which Equals To 81. So There Will Be 2 Stamps Left