Question

Can anyone help me??

Answer 1

for 9)

`\bf \textit{volume of a cylinder}=V=\pi r^2 h\qquad \begin{cases} h=height\\ r=radius=(diameter)/(2)\\ --------------\\ diameter=12\\ r=(12)/(2)=6\\ volume=1018 \end{cases} \\\\ \\ 1018=\pi \cdot 6^2\cdot h\impliedby \textit{solve for`

for 10)


`\bf \textit{volume of a cone}=V=\cfrac{\pi r^2 h}{3}\qquad \begin{cases} h=height\\ r=radius\\ --------------\\ h=20\\ volume=2094 \end{cases} \\\\ \\ 2094=\cfrac{\pi \cdot r^2\cdot 20}{3}\impliedby \textit{solve for`

now for 11)


`\bf \textit{volume of a sphere}=V=\cfrac{4}{3}\pi r^3\qquad \begin{cases} r=radius\\ ---------\\ volume=4189 \end{cases} \\\\ \\ 4189=\pi \cdot r^3\impliedby \begin{array}{llll} \textit{solve for`