1answer.
Ask question
Login Signup
Ask question
All categories
  • English
  • Mathematics
  • Social Studies
  • Business
  • History
  • Health
  • Geography
  • Biology
  • Physics
  • Chemistry
  • Computers and Technology
  • Arts
  • World Languages
  • Spanish
  • French
  • German
  • Advanced Placement (AP)
  • SAT
  • Medicine
  • Law
  • Engineering
krok68 [10]
3 years ago
13

In how many ways can you arrange the books A, B, C, and D on a bookshelf if books A and C must remain neighboring?

Mathematics
1 answer:
e-lub [12.9K]3 years ago
5 0
I believe the answer is 4
You might be interested in
PLEASE HELP ME FAST!! ( It's about y-intercept)
Alex_Xolod [135]

Answer:

y = 10x + 8

Step-by-step explanation:

1. The slope-intercept form of an equation is y = mx + b, where y = y-coordinate, m = slope, x = x-coordinate, and b = y-intercept.

2. Since we're given the value of slope and y-intercept, we just have to plug in those values to it's corresponding variable.

  • 10 = m, and 8 = b.
  • y = 10x + 8
6 0
2 years ago
What is the answer to x > 10
givi [52]

Answer:

x = 11 or any number bigger than 10

Step-by-step explanation:

7 0
2 years ago
Read 2 more answers
Solve the equation for x. 2 3 x −1 9 x + 5 = 20 x =
zubka84 [21]

Answer:

5/2

Step-by-step explanation:

23x-19x+5=2x

23x-19x-2x=5

2x/2=5/2

x=5/2

3 0
3 years ago
Read 2 more answers
Enjoy!!! (Fun work I know)
leva [86]

Answer:

14% were running backs 43/50 were not running backs

Step-by-step explanation:

0.14=14%

--------------

1-0.14=0.86

50x0.86=43

5 0
3 years ago
Read 2 more answers
The numbers​ 1, 2,​ 3, 4, and 5 are written on slips of​ paper, and 2 slips are drawn at random one at a time without replacemen
mamaluj [8]
<h2>Answer:</h2>

(a)

The probability is :  1/2

(b)

The probability is :  1/2

<h2>Step-by-step explanation:</h2>

The numbers​ 1, 2,​ 3, 4, and 5 are written on slips of​ paper, and 2 slips are drawn at random one at a time without replacement.

The total combinations that are possible are:

(1,2)   (1,3)    (1,4)    (1,5)

(2,1)   (2,3)   (2,4)   (2,5)

(3,1)   (3,2)   (3,4)   (3,5)

(4,1)   (4,2)   (4,3)   (4,5)

(5,1)   (5,2)   (5,3)   (5,4)

i.e. the total outcomes are : 20

(a)

Let A denote the event that the first number is 4.

and B denote the event that the sum is: 9.

Let P denote the probability of an event.

We are asked to find:

               P(A|B)

We know that it could be calculated by using the formula:

P(A|B)=\dfrac{P(A\bigcap B)}{P(B)}

Hence, based on the data we have:

P(A\bigcap B)=\dfrac{1}{20}

( Since, out of a total of 20 outcomes there is just one outcome which comes in A∩B and it is:  (4,5) )

and

P(B)=\dfrac{2}{20}

( since, there are just two outcomes such that the sum is: 9

(4,5) and (5,4) )

Hence, we have:

P(A|B)=\dfrac{\dfrac{1}{20}}{\dfrac{2}{20}}\\\\i.e.\\\\P(A|B)=\dfrac{1}{2}

(b)

Let A denote the event that the first number is 3.

and B denote the event that the sum is: 8.

Let P denote the probability of an event.

We are asked to find:

               P(A|B)

Hence, based on the data we have:

P(A\bigcap B)=\dfrac{1}{20}

( since, the only outcome out of 20 outcomes is:  (3,5) )

and

P(B)=\dfrac{2}{20}

( since, there are just two outcomes such that the sum is: 8

(3,5) and (5,3) )

Hence, we have:

P(A|B)=\dfrac{\dfrac{1}{20}}{\dfrac{2}{20}}\\\\i.e.\\\\P(A|B)=\dfrac{1}{2}

7 0
3 years ago
Other questions:
  • Nate is creating a PSA about building a "green” roof. Which source is most reliable for his research? a blog post written by a c
    12·1 answer
  • There are 15 more girls than boys in a summer camp. There are 135 campers in all. How many boys were there?
    14·2 answers
  • How much does a computer monitor weight kilomerters
    15·1 answer
  • Find the perimeter and area of the figure pictured below.
    14·1 answer
  • Please help thx ______________
    8·2 answers
  • Two linear functions are represented below.
    14·1 answer
  • Which of the following are remote interior angles of 6? <br> Check all that apply.
    13·2 answers
  • The product of 15 and the sum of a number and 5 is 90.
    15·1 answer
  • At the store food is $44.25 for 3 pounds. If you buy 4 pounds, how much will it cost ?
    15·1 answer
  • Trigonometri odevlerin islemi
    14·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!