Mathematics, 19.01.2020 01:31 athenasartin1
Find the surface area (in terms of pi) of a sphere of its volume is 36pi.
Answers: 2
![\bf \textit{volume of a sphere}\\\\ V=\cfrac{4\pi r^3}{3}~~ \begin{cases} r=radius\\[-0.5em] \hrulefill\\ V=36\pi \end{cases}\implies 36\pi =\cfrac{4\pi r^3}{3}\implies \cfrac{36\pi}{4\pi } \cdot 3=r^3 \\\\\\ 9\cdot 3=r^3\implies 27=r^3\implies \sqrt[3]{27}=r\implies \boxed{3=r} \\\\[-0.35em] ~\dotfill\\\\ \textit{surface area of a sphere}\\\\ SA=4\pi r^2\qquad \qquad SA=4\pi (3)^2\implies SA=36\pi](/tpl/images/0461/3163/0a33e.png)
Another question on Mathematics
Mathematics, 21.06.2019 16:00
Question: what is the value of x 4x-2= (-7) +5x. it would be greatly appreciated if someone could actually explain to me step by step
Answers: 2
Mathematics, 21.06.2019 18:10
Find the value of p for which the polynomial 3x^3 -x^2 + px +1 is exactly divisible by x-1, hence factorise the polynomial
Answers: 2
Mathematics, 21.06.2019 18:50
Abag contains 4 red, 7 blue and 5 yellow marbles. event a is defined as drawing a yellow marble on the first draw and event b is defined as drawing a blue marble on the second draw. if two marbles are drawn from the bag, one after the other and not replaced, what is p(b|a) expressed in simplest form? a. 7/16 b. 7/15 c. 14/16 d. 14/15
Answers: 1
Mathematics, 21.06.2019 21:50
Desmond wants to sell his car that he paid $8,000 for 2 years ago. the car depreciated, or decreased in value, at a constant rate each month over a 2-year period. if x represents the monthly depreciation amount, which expression shows how much desmond can sell his car for today? 8,000 + 24x 8,000 - 24x 8,000 + 2x 8,000 - 2xdesmond wants to sell his car that he paid $8,000 for 2 years ago. the car depreciated, or decreased in value, at a constant rate each month over a 2-year period. if x represents the monthly depreciation amount, which expression shows how much desmond can sell his car for today? 8,000 + 24x 8,000 - 24x 8,000 + 2x 8,000 - 2x
Answers: 1
You know the right answer?
Find the surface area (in terms of pi) of a sphere of its volume is 36pi....
Questions
Mathematics, 30.11.2020 22:00
Computers and Technology, 30.11.2020 22:00
Spanish, 30.11.2020 22:00
History, 30.11.2020 22:00
Mathematics, 30.11.2020 22:00
Biology, 30.11.2020 22:00
History, 30.11.2020 22:00
