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serious [3.7K]
3 years ago
13

In how many ways can Anna arrange 2 math books, 3 physics books, and 5 chemistry books on her shelf if all books of the same sub

ject must be adjacent? (The books are distinguishable.)
​
Mathematics
2 answers:
Rina8888 [55]3 years ago
8 0

Answer:

  • 2 maths books can be arranged as (2!=2) ways
  • 3 physics books can be arranged as (3!=6) ways
  • 5 chemistry books can be arranged as (5!=120) ways
  • Books can be arranged in suject-wise in (3!=6) ways

Hence, total ways are (2×6×120×6) ways =8640 ways.

<h2><u>8640</u> is the right answer.</h2>
svetlana [45]3 years ago
7 0

Answer:

  • 8640 ways

Step-by-step explanation:

Arranging the books of each subject:

<u>Math</u>:

  • Combination of 2 books → 2! = 2

<u>Physics</u>:

  • Combination of 3 books → 3! = 6

<u>Chemistry</u>:

  • Combination of 5 books → 5! = 120

We also need to consider the subjects.

There are 3 subjects, kept separately, they will be arranged in 3! = 6 ways

<u>So the total number of combinations is:</u>

  • 2*6*120*6 = 8640
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a small bridge sit atop for cube shaped powers that all have the same volume. The combined volume of the four pillars is 503 how
Natasha_Volkova [10]

Answer:

60 inches long are the sides of the pillars.

Step-by-step explanation:

Given : A small bridge sits atop four cube shaped pillars that all have the same volume. the combined volume of the four pillars is 500 ft cubed.

To find : How many inches long are the sides of the pillars?

Solution :

Refer the attached picture below for Clarence of question.

The volume of the cube is V=a^3

Where, a is the side.

The combined volume of the four pillars is 500 ft cubed.

The volume of each cube is given by,

V=\frac{500}{4}=125\ ft^3

Substitute in the formula to get the side,

125=a^3

a=\sqrt[3]{125}

a=5\ ft

We know, 1 feet = 12 inches

So, 5 feet =5\times 12=60 inches

Therefore, 60 inches long are the sides of the pillars.

6 0
3 years ago
On your math quiz, you earn 5 points for each question that you answer correctly. In the equation below, x represents the number
labwork [276]

Answer:

x-independent

y-dependent

Step-by-step explanation:

Dependent variable: y because you get the points by doing the quiz.

Independent variable: x because you don’t know how many questions you answered correctly.

Total points you score: Unknown until you know how many you got right also the same as y.

Number of questions you answer correctly: Unknown until you get your paper back, also the same as x.


Read more on Brainly.com - brainly.com/question/9741421#readmore

3 0
3 years ago
Help is needed :) not sure what to do?
myrzilka [38]
The answer to the question is d
8 0
3 years ago
How do you calculate the volume of a cone when given the height and diameter?
Umnica [9.8K]
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Read 2 more answers
CAN SOMEONE ANSWER ASAP PLEASE!!!!! WILL GIVE EXTRA POINTS
sdas [7]
I'm really sorry if I'm wrong but

14*26=364 so he can go 364 miles for every full tank so his first 364 are covered since he starts with a full tank.

Step 2:
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</span>
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3 years ago
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