Answer: ![249.48\ m^2; 369.168\ m^3](https://tex.z-dn.net/?f=249.48%5C%20m%5E2%3B%20369.168%5C%20m%5E3)
Step-by-step explanation:
Given
Cost of white-washing =Rs. 4989.60
Rate =20 per meter square
So, inside area of = ![\dfrac{4989.60}{20}=249.48\ m^2](https://tex.z-dn.net/?f=%5Cdfrac%7B4989.60%7D%7B20%7D%3D249.48%5C%20m%5E2)
The surface area of dome= ![4\pi\ r^2=249.48](https://tex.z-dn.net/?f=4%5Cpi%5C%20r%5E2%3D249.48)
![4\times 3.142\times r^2=249.48\\r^2=\frac{249.48}{4\times 3.142}=19.85\\r=4.455\ m](https://tex.z-dn.net/?f=4%5Ctimes%203.142%5Ctimes%20r%5E2%3D249.48%5C%5Cr%5E2%3D%5Cfrac%7B249.48%7D%7B4%5Ctimes%203.142%7D%3D19.85%5C%5Cr%3D4.455%5C%20m)
The volume of air in the dome ![V=\frac{4}{3}\pi r^3](https://tex.z-dn.net/?f=V%3D%5Cfrac%7B4%7D%7B3%7D%5Cpi%20r%5E3)
![V=\frac{4}{3}\cdot 3.142\cdot (4.45)^3\\V=369.17\ m^3](https://tex.z-dn.net/?f=V%3D%5Cfrac%7B4%7D%7B3%7D%5Ccdot%203.142%5Ccdot%20%284.45%29%5E3%5C%5CV%3D369.17%5C%20m%5E3)
You simply divide 678 by 3 and get 226.
Negative Exponent Rule:
this says that negative exponents in the numerator get moved to the denominator and become positive exponents. Negative exponents in the denominator get moved to the numerator and become positive exponents.
Like this||
Hi I wanna is a time for us tomorrow morning to go to the movies and I re66