Mathematics, 31.01.2020 03:46 mat1413
The volume of a sphere is 1928pi m^3. what is the surface area of the sphere to the nears tenth
Answers: 3
![\bf \begin{array}{llll} \textit{volume of a sphere}\\\\ V=\cfrac{4\pi r^3}{3}\\ ----------\\ \textit{surface area of a sphere}\\\\ S=4\pi r^2 \end{array}\qquad r=radius\\\\ -----------------------------\\\\ V=1928\implies 1928=\cfrac{4\pi r^3}{3}\implies \cfrac{3\cdot 1928}{4\pi }=r^3 \\\\\\ \sqrt[3]{\cfrac{3\cdot 1928}{4\pi }}=\boxed{r}\qquad thus \\\\\\ S=4\pi \left( \boxed{\sqrt[3]{\cfrac{3\cdot 1928}{4\pi }}} \right)^2](/tpl/images/0488/2911/9f3c0.png)
Another question on Mathematics
Mathematics, 21.06.2019 17:00
In triangle opq right angled at p op=7cm,oq-pq=1 determine the values of sinq and cosq
Answers: 1
Mathematics, 21.06.2019 19:30
If the ratio of sum of the first m and n terms of an ap is m2 : n2 , show that the ratio of its mth and nth terms is (2m − 1) : (2n − 1).
Answers: 3
Mathematics, 21.06.2019 20:30
The graph of a hyperbola is shown. what are the coordinates of a vertex of the hyperbola? (0, −4) (−3, 0) (0, 0) (0, 5)
Answers: 1
Mathematics, 22.06.2019 04:20
Evaluate f(x) when x = 3. f(x) = 16x? +2 if 6 < x < 9 112 if 9 x < 13 a: 110 b: 56 c: 74 d: 12
Answers: 2
You know the right answer?
The volume of a sphere is 1928pi m^3. what is the surface area of the sphere to the nears tenth...
Questions
Geography, 23.08.2019 15:50
History, 23.08.2019 15:50
Mathematics, 23.08.2019 15:50
History, 23.08.2019 15:50
Physics, 23.08.2019 15:50
Mathematics, 23.08.2019 15:50
History, 23.08.2019 15:50
Social Studies, 23.08.2019 15:50
Physics, 23.08.2019 15:50
English, 23.08.2019 15:50
Mathematics, 23.08.2019 15:50
