There are 10 books on a shelf. How many different
ways can the books be arranged?

Please help

Answers

Answer 1

Answer:

Number of books =10

Total number of ways =10!

Given pair of books to be together considering them as one

total sets =9

Number of ways of arranging them =9!ways

Those two books can be arranged in 2!

Total ways that the pair of books is together 

⇒9×2

Number of ways that are not together 

⇒10−9×2

⇒9(10−2)

⇒8×9

Answer 2

Answer:

I hope you understand please give brainliest

Step-by-step explanation:

We have a total of 10 books. If a particular pair of books must always be together, just tie these two books together and consider as a single book. Hence we can take total number of books as 9. These 9 books can be arranged in 9P9 =9!


Related Questions

Myles doesn't want to spend more than $11,000 per month on gate keepers. He hires 12 gate keepers who work an
average of 70 hours per month. What should Myles pay for an hourly rate in order to stay within budget

Answers

Answer:

$13.09 for an hourly rate

Step-by-step explanation:


In the figure, the horizontal lines are parallel and AB = BC = CD. Find JM.

A.15
B.10
C.5
D. 20

Answers

Answer:

By the transversal theorem, if segments on a transversal cut by parallel lines are equal, then similar segments cut by the same parallel lines on another transversal are also equal.

Therefore

JK=KL=LM=5

=>

JM=3*5=15

Step-by-step explanation:

A line is represented by the equation y = 3x – 7. Which statement about the line is TRUE?

A.
This line is parallel to the line whose equation is y = 2x – 7.

B.
The line has a positive slope.

C.
The y-intercept is 7.

D.
The point (1, 4) lies on the line.

Answers

Step-by-step explanation:

alignment in represented by erosion by which a statement both lights it's true that this line is a parallel that two parallel whose the equation is do you audio will be that a googlmy answer if two line was station then represented by equation allowed is a representation equation the by represented is a

pls answer fast. will give brainliest (v2)

Answers

Answer:

Account B   principle for B=400, principle for A=200

Step-by-step explanation:

Classify the polynomial according to its degree and number of terms 8x.

quadratic binomial

seventh-degree binomial

seventh-degree monomial

linear monomial

Answers

Answer:

Linear monomial

Step-by-step explanation:

As here the number of terms is only 8x that is only one hence it is a monomial and as its degree here is 1 hence it is linear.

So it is a linear monomial.

Angle is comparing the price of each shirts for summer camp at two companies.. Company A charges an initial fee of $50 and $12 per shirt Company B charges and initial fee of $10 and $15 per shirt. Evaluate the expressions 50 + 12x and 10 +15x =40 to find the total cost to print 40 shirts at each company. What is the difference in cost between the companies

Answers

Answer:

Company A's cost would be $530

Company B's cost would be $610

difference is $80

Step-by-step explanation:

A company has net working capital of $843. Long-term debt is $4,402, total assets are $6,633, and fixed assets are $4,272. What is the amount of total liabilities?

Answers

Answer:

Step-by-step explanation:

6633-4272-843+4402=5920

btw,wrong subject

please help 30 points !! in a proportional relationship when Y=2 when X=8 Which of the following equations would describe this relationship?

Answers

Answer:

(1)

Step-by-step explanation:

We will try:

(1) y = [tex]\frac{1}{4}[/tex]x => 2 = 2 (seems legit)

(2) y = 4x => 2 = 32 (nope)

(3) y = x - 6 => 2 = 2 (yes but actually no because it is proportional relationship)

(4) y = [tex]\frac{1}{2}[/tex]x - 2 => 2 = 2 (like the above)

If your chances of losing the shell game if you randomly pick is 2 in 3. What are the chances that you would lose 5 games in a row?

A) 13.1687
B) 1.31687
C) .131687
D) .013687

Answers

Answer:

c

Step-by-step explanation:

Which set of ordered pairs represents a linear relationship?
A {(0, 1), (2, 2), (-2, 0), (4,3)}
B. {(0, -2), (1, 1), (-1,-3), (2, 3)}
C. {(0, -1), (1, 1), (-1,-2), (2,3)}
D. {(0, -2.5), (5, 2.5), (1, -2.5), (-1, -3.5)}​

Answers

Answer:

A

Step-by-step explanation:

please help me asap!

Answers

Answer:

ST=18

Step-by-step explanation:

Urgently need help please . Thanks

Answers

Answer:

224 feet^3

Step-by-step explanation:

Cube -> Volume = 4×7×7 = 196 feet^3

Prism -> Volume = 2×7×2 = 28 feet^3

196+28=224

A woman buys a pair of shoes at a sale. She pays $45, saving $15 on the normal price. The percentage discount on the pair of shoes is

Answers

Step-by-step explanation:

this is the answer i hope to get full mark

The percentage of the discount is %25.

This is because 15 is %25 of 60(full price)

Hope this helps! Have a great day! :)

Does side lengths 4, 8 and 12 form a right triangle?

Answers

Answer:

No it does not form a triangle.

Step-by-step explanation:

If the lengths satisfy the Pythagorean Theorem (a2+b2=c2) then it is a right triangle.

no it doesn’t form a right triangle

PLEASE HELP MEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEE PLEASEEEEEEEEEEEEEEEEEEEEEEEE WILL GIVE BRAINLIST

2. Hank used a semicircle, a rectangle, and a triangle to form the following composite figure. What is its area in square centimeters? Use 3.14 to approximate . Show your work.

Answers

Answer:

Step-by-step explanation:

The area of a circle is 3.14r^2

The area of the triangle is bh/2

The area of the rectangle is wh

A=3.14(5^2)/2+8(10)/2+5(20)

A=3.14(25)/2+40+100

A=179.25 cm^2

Answer:

Step-by-step explanation:

Area of rectangle = 5 × 20 = 100 cm²

Area of triangle = 0.5 × 10 × 8 = 40 cm²

Are of semicircle = 0.5 × area of circle = 0.5 × πr² = 0.5 × 25π = 12.5π cm²

Total area = 100+40+ 12.5π ≈ 179.25 cm²

If the sum of two numbers is 4 and the sum of their spuares minus three times their product is 76, find the numbers

Answers

Answer:

[tex]Suppose~that~two~numbers~are~x~and~y.\\From~the~first~condition,\\x+y=4.........(1)\\or, y=4-x.......(2)\\From~the~second~condition,\\x^2+y^2-3xy=76\\or, (x+y)^2-2xy-3xy=76\\or, 4^2-5xy=76\\or, -5xy = 76-16\\or, -5xy = 60\\or, xy = -12\\From~eq^n~(2),\\x(4-x)=-12\\or, 4x-x^2=-12\\or, x^2-4x-12=0\\or, x^2 +2x-6x-12=0\\or, x(x+2)-6(x+2) = 0\\or,(x+2)(x-6) = 0\\i.e. x = -2 ~or ~6\\When~ x=-2, y=4-(-2) = 4+2 =6\\When~x=6, y=4-6 = 4-6 = -2\\So,~the~two~numbers~are~-2~and~6.[/tex]

Answer:

-2 and 6

Step-by-step explanation:

Mark the first number as x

and the second number as y

Since x + y = 4

y = 4 - x

// substitute the given value of y into the equation

[tex]x^{2} + y^{2}[/tex] - 3xy = 76

[tex]x^{2}[/tex] + [tex](4-x)^{2}[/tex] - 3 * x * (4 - x) = 76

[tex]x^{2}[/tex]  + 16 - 8x + [tex]x^{2}[/tex]  - 12x + 3[tex]x^{2}[/tex] = 76

[tex]x^{2}[/tex]  + [tex]x^{2}[/tex]  + 3[tex]x^{2}[/tex]  - 20x = 76 - 16

5[tex]x^{2}[/tex]  - 20x = 60

5[tex]x^{2}[/tex]  - 20x - 60 = 0

// divide both sides by 5

[tex]x^{2}[/tex] - 4x - 12 = 0

// write -4 x as a difference, this way it is faster than calculating discriminant

[tex]x^{2}[/tex] + 2x - 6x - 12 = 0

// factor out x and -6 from the expression

x (x +2) - 6 (x +2) = 0

(x - 6) * (x + 2) = 0

// there are two possible cases

1) x - 6 = 0

2) x + 2 = 0

1) x = -2

2) x = 6

// substitute the given value of x into the equation

1) y = 4 - x = 4 - (-2) = 6

2) y = 4 - x = 4 - 6 = -2

Now we get two pairs (-2; 6) and (6; -2), which are the solutions to the system

Since their sequence as the question suggests is irrelevant, the numbers are -2 and 6

Given the points (-5,-7) and (-2,-8), calculate
the slope.
(I NEED THIS ANSWER ASAP!)

Answers

Answer:

Slope is -1/3

Step-by-step explanation:

(-5,-7)(-2,-8)

-8+7/-2+5

-1/3

m=-1/3

Answer:

Slope=-1/3

Step-by-step explanation:

Please help right now which of the following is a major challenge to volcano preparedness​

Answers

Answer:

D or C I think

Step-by-step explanation:

How do someone overrun so much lava and disaster kits are eated by lava so

The answer is (C)
Hope this helps!

help asap, i will mark brainliest!

Answers

Answer:

150m

Step-by-step explanation:

[tex]Length=120-(-30)=120+30=150m[/tex]

A computer salesperson is paid a base amount of $100 for the month. For each computer he sells, he receives $15. This month he would like to make at least $450.

Answers

Answer:

He must sell 24 computes

Step-by-step explanation:

100 + 15x = 450

15x = 350

x = 23.33

HELP ME PLS :) !!!!!

Answers

Answer:

30

Step-by-step explanation:

78-48=30

78-48=30 es la respuesta

-2 (x + 5) = 4 formula to find X​

Answers

Answer:

-2x -10=4

-2×=4+10

-2×=14

×=14/-2

therefore,×= -7

Find the segment lengths

Answers

Answer:

y = 18

Step-by-step explanation:

[tex] \frac{21 + 7}{21} = \frac{y + 6}{y} [/tex]

[tex] \frac{28}{21} = \frac{y + 6}{y} [/tex]

Cross multiply

28*y = 21(y + 6)

28y = 21y + 126

28y - 21y = 126

7y = 126

y = 126/7

y = 18

Which expressions are equivalent to z ⋅ 3 1/3
select all that apply!!!!!!!!!!!!!!

3z+1/3
6z−2/3z−3z+z
z ⋅ 4−2/3
z(4−2/3)
z(1/3+3)

Answers

Answer:

Options 2), 4 , and 5 are CORRECT

Step-by-step explanation:

Notice that z * 3  1/3 = z * (3 + 1/3) = z * (9/3 + 1/3) = z * 10/3 = 10/3 z

1)  The first option is not good'

2) 6 z - 2/3 z - 3 z + z = 4 z - 2/3 z = 12/3 z - 2/3 z = 10/3  z  So this option is CORRECT

3) z * 4 - 2/3 is not good since 2/3 is not multiplied by z

4) z ( 4 - 2/3) = z (12/3 - 2/3) = z * 10/3  so this one is CORRECT

5)  z (1 / 3 + 3) = z ( 1/3 + 9/3 ) = z (10/3)  So this one is also CORRECT

How to do 5x+2=52? ME GIVE BRAIN DO IT NOWWWWW

Answers

Hi there!

52 subtract by 2 is 50 and then dividing by 5 would be 10.

So x would be 10.

Stephen Simmons received a single payment loan for a loan for $6,200. he agreed to repay the loan and 160 days at an interest rate of 10% ordinary interest. What is the maturity value of his loan when he pays it back in 160 days. 

Answers

9514 1404 393

Answer:

  $6475.56

Step-by-step explanation:

The maturity value is ...

  A = P(1 +rt)

where P is the principal amount, r is the annual rate, and t is the number of years. For ordinary interest, a year is 360 days, so the number of years is 160/360 = 4/9.

The loan value is ...

  A = $6200(1 + 0.10×4/9) ≈ $6475.56

Stephen's loan has a maturity value of $6,475.56.


10. Which is the equation of a line that passes through (-2,-1) and (-4,-3)?

Answers

Answer:

Y axis

Step-by-step explanation:

Dont have a explanation

The answer would be y = x + 1

A pair of cleats and a pair of crocs is $200 the difference in the cost is $55 determine the cost of each type of footwear

Answers

X= cleats
(X-55)crocs
X +(x-55) = 200
2x=255
X=127.50
127.50-55= 72.5

So one is 127.50 and the other is 72.50

(I’m guessing in the problem it says which one is cheaper) therefore you know what answer correlates with the crocs and cleats

saben cual es la raiz cuadrada de 3025 con metodo de aproximaciones sucesivas ​

Answers

Answer:

which language is this

A coordinate grid is shown below:

Part A: Which point represents the origin? (2 points)

Part B: Starting from the origin, explain how to plot the following three points accurately:

(2, −2)

(−2, 1.5)
Please answer the question quickly, Thank you.

Answers

Answer:

I would need to see a coordinate plane in order to answer. Sorry

Step-by-step explanation:

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