Answer:
113.1
Step-by-step explanation:
Volume of sphere =
× π × r²
Volume of sphere =
× π × 3²
Volume of sphere =
× π × 9
Volume of sphere =
× 9 π
Volume of sphere = 113.1
For what- there’s no pic sorry
Answer:
part a- if he really wants it then yes but its overpriced with the tax. part b- about $5.80 CORRECT ME IF IM WRONG I USED A NEW APP
Step-by-step explanation:
if the minute hand of the <u>circular clock</u> is 28 inches, that simply means its radius is 28.
![\bf \textit{area of a circle}\\\\A=\pi r^2~~\begin{cases}r=radius\\[-0.5em]\hrulefill\\r=28\end{cases}\implies A=\pi 28^2\implies A=784\pi](https://tex.z-dn.net/?f=%5Cbf%20%5Ctextit%7Barea%20of%20a%20circle%7D%5C%5C%5C%5CA%3D%5Cpi%20r%5E2~~%5Cbegin%7Bcases%7Dr%3Dradius%5C%5C%5B-0.5em%5D%5Chrulefill%5C%5Cr%3D28%5Cend%7Bcases%7D%5Cimplies%20A%3D%5Cpi%2028%5E2%5Cimplies%20A%3D784%5Cpi)
so it covers that much in 1 rotation, so in 4 rotations that'd be 4(784π) => 3136π.