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
Art [367]
3 years ago
14

A train has 10 cars numbered 1 through 10. If the cars are coupled randomly, what is the probability that the first3 cars are in

car number order?
Mathematics
2 answers:
Pepsi [2]3 years ago
8 0

You would have a 3 to 10 chance that the first 3 cars are in order


lakkis [162]3 years ago
4 0

Answer:

\frac{1}{720}

Step-by-step explanation:

If we arrange the first three cars one by one we get -

Selecting the first car out of ten cars = \frac{1}{10}

Selecting the second car out of remaining nine cars = \frac{1}{9}

Selecting the third car out of remaining eight cars = \frac{1}{8}

So, the probability of selecting  three cars back to back without repeating is given by

Probability of Selecting the first car out of ten cars * Probability of Selecting the second car out of  remaining nine cars * Probability of Selecting the third car out of  remaining eight cars

= \frac{1}{10} * \frac{1}{9}* \frac{1}{8}\\= \frac{1}{720}

You might be interested in
4x + 5 + 5x + 6 = 29. Whats X?
BigorU [14]

Answer:

9x

Step-by-step explanation:

the full answer is 9x+11=29

3 0
3 years ago
Read 2 more answers
How does the value of the digit 2 in the number 32,000 compare with the value of the digit 2 in the number 26,000?
julsineya [31]

Answer:

the second value is ten times higher then the refference one

6 0
3 years ago
Please help I don't understand
aksik [14]

Answer:

y=16(x)+7(y)

y=16 + 7

y=23

im not sure bc is nt info but i think i this

Step-by-step explanation:

5 0
3 years ago
Please help me
Solnce55 [7]

Answer:

4x^2-81y^2 is NOT a perfect square trinomial, factored. You know this because if you factor this to (2x+9y)(2x-9y) then you will see that the signs between terms in the parenthesis are DIFFERENT.

Step-by-step explanation:

Taking notes as you go through the course will help you retain and process the information much better than getting "help" from a site that is probably badly named.

4 0
2 years ago
The assembly time for a product is uniformly distributed between 6 to 10 minutes. the expected assembly time (in minutes) is
Marta_Voda [28]
The expected assembly time is the middle of the range of the uniform distribution, 8 minutes.
7 0
3 years ago
Other questions:
  • PLEASE ANSWER + BRAINLIEST !!!!
    12·2 answers
  • A large number is 5 more than twice a smaller number. their sum is 80. find the numbers
    14·1 answer
  • I need help asap please
    11·1 answer
  • Oraciones con la palabra evaporar
    10·1 answer
  • Find the 12th term of following geometric sequence 5, 20,80, 320,
    6·1 answer
  • What is the formula for this problem?
    7·2 answers
  • Which expression is equivalent to 6-(-8)?<br> O-6+8<br> O -6+(-8)<br> O 6+(-8)<br> O 6 + 8
    9·2 answers
  • I need the answer to this please help
    15·1 answer
  • What was the average speed if I drove 60 miles per hour to get to my grandmas house and 30 miles per hour to get home. Represent
    5·1 answer
  • Plz help asap brainiest if right
    8·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!