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
Mrac [35]
3 years ago
14

Lisa and Krystal are planning trips to ten countries this year. They have 14 countries on their bucket list, in how many ways ca

n they decide which countries to SKIP? 643 24,024 683 1,001
Mathematics
1 answer:
Salsk061 [2.6K]3 years ago
8 0

Answer:

1,001 ways for them to decide.

Step-by-step explanation:

The order in which they will visit the countries is not important, so we use the combinations formula to solve this question.

Combinations formula:

C_{n,x} is the number of different combinations of x objects from a set of n elements, given by the following formula.

C_{n,x} = \frac{n!}{x!(n-x)!}

In this question:

10 countries from a set of 14. So

C_{14,10} = \frac{14!}{10!(14-10)!} = 1001

1,001 ways for them to decide.

You might be interested in
Find the slope of the line between the points (4,1) and (8,9)
Liono4ka [1.6K]
Use the slope formula which is; 
slope= (y2 - y1)/ (x2 - x1)
slope= (9-1)/ (8-4)
Slope= (8)/(4)
Slope= 2
6 0
3 years ago
Find the GCF of 44 and 121
nlexa [21]

The GCF of 44 and 121 is 11

:)

8 0
3 years ago
Read 2 more answers
At the dog park, 2 dogs are black with spots, 5 dogs are white with spots, 1 dog is solid white, and 4 dogs are solid black. Wha
Nikolay [14]
Its 11/12 , you need to divide the "wanted results" (every dog which is either black, with spots or both ) by every every possible result ( all dogs ). so 11/12=0.92
5 0
3 years ago
Read 2 more answers
Which is greater 7/9 or 85/100. Please help
Alika [10]
\frac{7}{9} \ \ or \ \ \frac{85}{100} \\ \\ \frac{7}{9} \ \ or \ \ \frac{17}{20} \\ \\\frac{7\cdot 20}{180} \ \ or \ \ \frac{17\cdot 9}{180}\\ \\\frac{140}{180} \ \ < \ \ \frac{153}{180} \\ \\ Answer : \ \frac{7}{9} \ \ < \ \ \frac{85}{100}


4 0
3 years ago
Read 2 more answers
What is the scale factor of triangle ABC to triangle DEF. <br> A: 2<br> B: 1/2<br> C: 1/6<br> D: 6
Fudgin [204]
Little tip ** if u r going from a larger shape to a smaller shape, the scale factor is going to be a proper fraction....a number less then 1 but greater then 0

BC = 66......EF = 11.......66 times what is 11
66x = 11
x = 11/66 reduces to 1/6
so 66 * 1/6 = 11

now compare the other sides...
42 * 1/6 = 7.......looks like AC and DF
72 * 1/6 = 12...looks like Ab and DE

so ur multiplying every number in the big triangle by 1/6 , and getting the measures of the little triangle....so ur scale factor is 1/6 <==

8 0
3 years ago
Read 2 more answers
Other questions:
  • - 3x + 2y = -6<br> x + 7y = 2
    10·1 answer
  • Will mark brainiest
    8·2 answers
  • Help please I need to find the answer to x
    9·2 answers
  • thomas and his mom take a taxi to the airport it costs a flat fee of $10 plus $4.75 a mile his mom adds a 10% tip to the total a
    15·2 answers
  • Complete each sentence with the correct conjugation of venir or traer. Nosotros no ____. (venir) Estamos enfermos.
    13·1 answer
  • PLEASE help. I have posted this question many times and no one is answering.
    15·1 answer
  • Rory earned an 84% on his test. He answered 21 questions correctly. How many total questions were on the
    12·1 answer
  • 1. My dog Wyatt is growing at a rate of 1.5 ounces per month. He is currently 200 ounces. a) Write an expression that represents
    13·1 answer
  • Can see please help me with the 2 equations (in the picture) find x
    14·1 answer
  • 25 points!! please answer
    13·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!