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4 years ago

What’s the volume of the cylinder

Mathematics

2 answers:

Eduardwww [97]4 years ago

8 0

Answer:753.98

Step-by-step explanation:4^2*15*pie

nevsk [136]4 years ago

3 0

Answer:

188.496 mm^3 (or 188.495559 mm^3 if you need more decimals)

Step-by-step explanation:

We are given the equation of V=pi(r^2)H where V is the volume

To find R, we would look at the circle (or the top in this case). Looking at it we can see that the Diameter is 4mm, we are looking for the radius (or r). To find r, we would take the diameter and divide by 2, we get 2mm

r=2 mm

h= 15mm

v=?

So plugging it into the formula

V=pi*(2^2)*15 = 188.496 mm^3

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The value of

marusya05 [52]

$\large\underline{\sf{Solution-}}$

We have to find out the value of the fraction.

Let us assume that:

$\sf \longmapsto x =2 + \dfrac{1}{2 + \dfrac{1}{2 + \dfrac{1}{2 + ... \infty} } }$

We can also write it as:

$\sf \longmapsto x =2 + \dfrac{1}{x}$

$\sf \longmapsto x =\dfrac{2x + 1}{x}$

$\sf \longmapsto {x}^{2} =2x + 1$

$\sf \longmapsto {x}^{2} - 2x - 1 = 0$

Comparing the given equation with ax² + bx + c = 0, we get:

$\sf \longmapsto\begin{cases} \sf a =1 \\ \sf b = - 2 \\ \sf c = - 1 \end{cases}$

By quadratic formula:

$\sf \longmapsto x = \dfrac{ - b \pm \sqrt{ {b}^{2} - 4ac } }{2a}$

$\sf \longmapsto x = \dfrac{2 \pm \sqrt{ {( - 2)}^{2} - 4(1)( - 1)} }{2 \times 1}$

$\sf \longmapsto x = \dfrac{2 \pm \sqrt{4 + 4} }{2 \times 1}$

$\sf \longmapsto x = \dfrac{2 \pm \sqrt{8} }{2}$

$\sf \longmapsto x = \dfrac{2 \pm2 \sqrt{2} }{2}$

$\sf \longmapsto x = 1 \pm\sqrt{2}$

$\sf \longmapsto x = \begin{cases} \sf 1 + \sqrt{2} \\ \sf 1 - \sqrt{2} \end{cases}$

But "x" cannot be negative. Therefore:

$\sf :\implies x = 1 + \sqrt{2}$

So, the value of the fraction is 1 + √2.

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3 years ago

How many solutions does this system

mr Goodwill [35]

The answer is B.) one

Hope this helps :)

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In a woodworking class, you need to make five triangles out of plywood. Each triangle has a height of 6 inches and a base of 14

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Step-by-step explanation: :D

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Black_prince [1.1K]

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shtirl [24]

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