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inessss [21]
4 years ago
12

A spherical ball with a volume of 2,304π in.3 is packaged in a box that is in the shape of a cube. The edge length of the box is

equal to the diameter of the ball. What is the volume of the box?
Mathematics
1 answer:
Nutka1998 [239]4 years ago
6 0

Answer:

Therefore the volume of the box is 13824 in³

Step-by-step explanation:

Given:

A spherical ball with is packaged in a box that is in the shape of a cube.

Volume of ball = 2304π in³.

Let 'r' be the radius of sphere

To Find:

Volume of Cube = ?

Solution:

Volume of sphere is given by

\textrm{Volume of sphere}=\dfrac{4}{3}\pi r^{3}

Substituting the values we get

2304\pi=\dfrac{4}{3}\pi r^{3}\\\\\therefore r^{3}=1728\\\\Cube\ Rooting\\\\r=12\ in

Now we know that diameter is given by

diameter=2\times r=2\times 12=24\ in

it is given that,

The edge length of the box is equal to the diameter of the ball.

Therefore the length of cube = 24 in

Now the volume of the cube is given by

\textrm{Volume of cube}=(edge)^{3}

substituting the values we get

\textrm{Volume of cube}=(24)^{3}=13824\ in^{3}

Therefore the volume of the box is 13824 in³

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Answer:

#2:

To get rid of a radical we multiply the radical by itself, so we multiply \frac{3}{\sqrt{2}} by \frac{\sqrt{2}}{\sqrt{2}}

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#3:

\sqrt\frac{2}{5} is the same as \frac{\sqrt{2}}{\sqrt{5}} so we multiply by \frac{\sqrt{5}}{\sqrt{5}} so we get \frac{\sqrt{10}}{5}.

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We combine like terms to get  -2\sqrt{2} + 4\sqrt{3}

Hope this helps!

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3 years ago
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Step-by-step explanation:

area of the shaded region

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7 0
3 years ago
In a symphony orchestra, there are 2 vacancies for cellists only, 4 vacancies for violinists only and 4 vacancies for any of the
matrenka [14]

Answer:

123480

Step-by-step explanation:

We have to choose:

  • 2 cellists from 8 cellists;
  • 4 violonists from 7 violonists;
  • 4 cellists or violonists from 9 remaining musicians (8-2=6 - cellists left, 7-4=3 - violonists left, 6+3=9 - left musicians in total)

1. 2 cellists from 8 can be chosen in

C_8^2=\dfrac{8!}{2!(8-2)!}=\dfrac{8!}{2!6!}=\dfrac{6!\cdot 7\cdot 8}{2\cdot 6!}=28

different ways.

2. 4 violonists from 7 can be chosen in

C_7^4=\dfrac{7!}{4!(7-4)!}=\dfrac{7!}{4!3!}=\dfrac{4!\cdot 5\cdot 6\cdot 7}{4!\cdot 2\cdot 3}=35

different ways.

3. 4 musicians from 9 can be chosen in

C_9^4=\dfrac{9!}{4!(9-4)!}=\dfrac{9!}{4!5!}=\dfrac{5!\cdot 6\cdot 7\cdot 8\cdot 9}{5!\cdot 2\cdot 3\cdot 4}=126

different ways.

In total, there are 28\cdot 35\cdot 126=123480 differnt ways to fill all vacancies.

7 0
3 years ago
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