Answer:3.277 units
Step-by-step explanation:
Given
The surface area of a sphere is ![135\ sq.units](https://tex.z-dn.net/?f=135%5C%20sq.units)
The surface area of a sphere is given by
![\Rightarrow S.A.=4\pi r^2](https://tex.z-dn.net/?f=%5CRightarrow%20S.A.%3D4%5Cpi%20r%5E2)
Putting values
![\Rightarrow 135=4\times \frac{22}{7}\times r^2\\\\\Rightarrow r^2=\dfrac{135\times 7}{22\times 4}\\\\\Rightarrow r^2=10.738\\\Rightarrow r=\sqrt{10.378}=3.277\ units](https://tex.z-dn.net/?f=%5CRightarrow%20135%3D4%5Ctimes%20%5Cfrac%7B22%7D%7B7%7D%5Ctimes%20r%5E2%5C%5C%5C%5C%5CRightarrow%20r%5E2%3D%5Cdfrac%7B135%5Ctimes%207%7D%7B22%5Ctimes%204%7D%5C%5C%5C%5C%5CRightarrow%20r%5E2%3D10.738%5C%5C%5CRightarrow%20r%3D%5Csqrt%7B10.378%7D%3D3.277%5C%20units)
Answer:
Looks correct.
Step-by-step explanation:
The lines (absolute value) turn the negatives to positive.
Hope you get it correct!
Answer:
8.4 * 10^6
Step-by-step explanation:
8.4 * 10^6
1 million = 1 * 10^6
8 million 4 hundred thousand is 8.4 * 10^4 because this number is 8.4 times bigger than a million.
Answer:
see explanation
Step-by-step explanation:
Using the Addition formula for sine
sin(x ± y) = sinxcosy ± cosxsiny
Consider the left side
sin(360 - Θ ), then
= sin360°cosΘ - cos360°sinΘ
= 0 × cosΘ - 1 × sinΘ
= 0 - sinΘ = - sinΘ → verified
Answer:
Shawn is 11 years old, Eric is 22 years old