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
andrew11 [14]
2 years ago
9

Haroldo, Xerxes, Regina, Shaindel, Murray, Norah, Stav, Zeke, and Georgia are

Mathematics
1 answer:
anastassius [24]2 years ago
3 0

And this problem, we're trying to figure out the probability that Xerxes arrives first and Regina arrives last. Now, the first thing to note is that there are nine people. So if we list off nine different spaces, there's nine spaces and now the order in which they arrive could be any order. So for the first spot there are nine different ways that someone can show up, Anyone can show up first and then once someone has shown up first, the person who arrives second, there are eight different ways to choose that person. Similarly, the person who arrives third, there are seven people remaining, so there's seven ways to choose that and so on. And so there are actually nine factorial ways that the people can arrive to the party. Now if xerxes needs to be in the first spot and Regina needs to be in the last spot than in these remaining seven spaces, we can put any people, so there can be any ordering between xerxes and Regina. So there is seven factorial ways to order the people between xerxes and Regina. So the probability that we end up with is seven factorial divided by nine factorial. So that is seven factorial. And remember that nine factorial can be written as nine times eight times seven factorial. The seven factorial are going to cancel. We get 1/7 times eight which is equal 1/72 which is equal to approximately zero point 014 and that's it

You might be interested in
WILL GIVE 20 POINTS
Rainbow [258]
The answer is D. 4^-2
5 0
3 years ago
Read 2 more answers
What is the answer for x? <br><br> 4/9x + 1/5x = 87
marysya [2.9K]

Answer:

13

Step-by-step explanation:

4 0
3 years ago
Read 2 more answers
What is this 12 x ? = 5
Natasha_Volkova [10]
The answer is: x= 5/12 or x=0.416
5 0
3 years ago
Read 2 more answers
Pls help
denis-greek [22]

Answer:

C I think

Step-by-step explanation:

Hehehehehehe

7 0
3 years ago
A + (−5) = −12<br><br> What is a
kherson [118]
A + -5 = -12

A - 5 = -12

A = -7.

This is the solution.
7 0
3 years ago
Read 2 more answers
Other questions:
  • Callie surveyed 40 students at her school to see how many have dogs and/or cats. She found that 40% of students who have dogs, d
    7·2 answers
  • Translate into algebraic expression
    13·2 answers
  • Which functions could represent a reflection over the y-axis of the given function? Check all that apply. g(x) = –(4)x g(x) = 0.
    13·1 answer
  • Determine the intercepts of the line.
    15·1 answer
  • Can anyone help with 11-18 for me please
    8·1 answer
  • Is number 11 help plz
    10·1 answer
  • Evaluate the expression for x=28,y=14,z=4
    10·1 answer
  • Sam is an artist, and he wants to purchase frames to display his work at home. He wants to frame no fewer than 10 of his pieces,
    9·1 answer
  • What is a rectangular prism
    6·2 answers
  • What is t? <br> 12t - 8t = -52
    5·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!