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
Irina18 [472]
3 years ago
11

From eight different books, in how many ways can any four of them be arranged side by side on a bookshelf?

Mathematics
1 answer:
Snezhnost [94]3 years ago
3 0
First we calculate how many ways you can choose four books from a set of eight.
We use the formula n! / [r! * (n-r)!]

8! / [4! * 4!]

= 8*7*6*5 / 4*3*2*1 = 70 ways

Then we have to calculate how many permutations can be made from 4 objects which equals 4*3*2*1 = 24

So, the TOTAL number of ways = 70 * 24 = 1,680


You might be interested in
The student body at a high school was surveyed about sports participation. The table below shows the data by grade level. What d
lisov135 [29]

Im doing this question rn and I believe the answer should be C) the ratio of the student body that are in 12th grade and play two or more sports.

Step-by-step explanation: I chose this bc there are 28 12th graders that play 2 or more sports and the total student body is 612. So 28/612 makes most sense to me. Sorry this is so late but I just checked and it’s right!

3 0
3 years ago
IT IS TIMED PLS HELP which of the following is equivalent to (125^2/1254/3)
TEA [102]
By doing (125^2/1254/3) i get 4.15 every time i try to do it a different way, but if you do 125^(2/3) i get 25 for the answer.

answer: D) 25

hope this helped :)
3 0
3 years ago
Danielle has a $30 gift card to T-Shirt-paradise . She wants to use it to buy a rock band T-shirt and a glitter T-shirt. The roc
hammer [34]
X= $18.05. Hope this helps! can i please get brainliest
5 0
3 years ago
The vet told Jake that his dog, Rocco, who weighed 55 pounds, needed to lose 10 pounds. Jake started walking Rocco every day and
Ilya [14]

Answer: 55-1/2w=p

Step-by-step explanation: 55 is the starting weight. Therefore, you need to subtract  55 by 1/2 (the amount of weight he loses each week) times each week. This will determines the weight- (p).

6 0
3 years ago
Read 2 more answers
Kevin recorded the effects of violent video games on antisocial behavior.
den301095 [7]

Answer:

B.

Explanation:

Because the study is relying on the effects of violent video games and how it affects anti-social behavior.

If this was a math problem it'd be:

---> y= effect and signs of anti social behavior.

---> x= violent video games.

--->5= Hours spent playing. (Lets use 5 as a random number to write this as an equation then.)

Equation form:

Most likely would look something like this

(5x=y)

Hope this helped. I know it's late but it came up on my "Selected for you" section so I decided I'd answer it.

5 0
3 years ago
Read 2 more answers
Other questions:
  • On a number line, what number is two-thirds of the distance from one-half to 2.25
    11·1 answer
  • A dresser in the shape of a rectangular prism measures 2 feet by 2 feet by 6 feet. What is the surface area of the dresser?
    11·2 answers
  • Please Help Asap thank you!!​
    9·1 answer
  • Y=-3x 2.5 is it linear
    15·2 answers
  • You roll a die and flip three coins. find the number of possible outcomes.
    12·2 answers
  • The weather was a youth soccer field must be at least 45 m but it cannot exceed 60 m right to inequalities that describe the wid
    7·1 answer
  • What is the value of x in this equation? 4(x + 6) – 3x = 26
    12·1 answer
  • A) x = 30 b) x = 40 C) x = 45 70​
    8·1 answer
  • Which expression has a solution of 54, if t=6?
    5·2 answers
  • En una fábrica, dos trabajadores llenan envases de gel
    14·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!