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dinarussell74

dinarussell74

28.05.2020 •

Mathematics

Find the volume of the cone

Find the volume of the cone

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Ответ:

kah36

28.01.2022

The volume of cone is $\boxed{\tt{37.68}}$ units³.

Step-by-step explanation:

As per given question we have provided :

➝ Radius of cone = 2 units➝ Height of cone = 9 units

Here's the required formula to find the volume of cone :

${\longrightarrow{\pmb{\sf{V_{(Cone)} = \dfrac{1}{3}\pi{r}^{2}h}}}}$

➝ V = Volume➝ π = 3.14➝ r = radius➝ h = height

Substituting all the given values in the formula to find the volume of cone :

${\implies{\sf{Volume_{(Cone)} = \dfrac{1}{3}\pi{r}^{2}h}}}$

${\implies{\sf{Volume_{(Cone)} = \dfrac{1}{3} \times 3.14{(2)}^{2}9}}}$

${\implies{\sf{Volume_{(Cone)} = \dfrac{1}{3} \times 3.14{(2 \times 2)}9}}}$

${\implies{\sf{Volume_{(Cone)} = \dfrac{1}{3} \times 3.14{(4)}9}}}$

${\implies{\sf{Volume_{(Cone)} = \dfrac{1}{3} \times 3.14 \times 4 \times 9}}}$

${\implies{\sf{Volume_{(Cone)} = \dfrac{1}{3} \times 3.14 \times 36}}}$

${\implies{\sf{Volume_{(Cone)} = \dfrac{1}{\cancel{3}}\times 3.14 \times \cancel{36}}}}$

${\implies{\sf{Volume_{(Cone)} = 3.14 \times 12}}}$

${\implies{\sf{Volume_{(Cone)} = 37.68}}}$

$\star{\underline{\boxed{\sf{\red{Volume_{(Cone)} = 37.68 \: {units}^{3}}}}}}$

Hence, the volume of cone is 37.68 units³.

$\rule{300}{2.5}$

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Ответ:

jimena15

28.01.2022

12 $\pi$ units^3

Step-by-step explanation:

V=1/3Bh

=1/3 Area of the base times height

Area of base: $\pi$ r^2=4 $\pi$

height=9

4 $\pi$ times 9=36 $\pi$

1/3 of 36 $\pi$ =12 $\pi$

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Ответ:

jynaepooh

27.03.2020

The value of f(7) is 1.08

Solution:

Given that,

f(5) = 12

The sequence is defined recursively by formula:

$f(n) = 0.3 \times f(n-1)$

where n is an integer and n is greater than 0

Substitute n = 6 in given formula,

$f(6) = 0.3 \times f(6-1)\\\\f(6) = 0.3 \times f(5)\\\\Substitute\ f(5) = 12\\\\f(6) = 0.3 \times 12\\\\f(6) = 3.6$

Find f(7)

Substitute f = 7 in given formula

$f(7) = 0.3 \times f(7-1)\\\\f(7) = 0.3 \times f(6)\\\\f(7) = 0.3 \times 3.6\\\\f(7) = 1.08$

Thus the value of f(7) is 1.08

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