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]
2 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]2 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
Ten more than the quotient of a number and 3 is 12.
Ilya [14]

Answer:

Step-by-step explanation:

5

3 0
3 years ago
Simple math but I can't seem to understand it: x+y=2 becomes y=2-x, in order to find slope and y intercept y=mx+b The result bec
IgorLugansk [536]

Answer:

See below.

Step-by-step explanation:

So we started off with the equation:

x+y=2

And we subtracted x from both sides to acquire:

y=2-x

Now, this is essentially slope-intercept form. Recall that the slope-intercept form is:

y=mx+b

Where m is the slope and b is the y-intercept.

If we rearrange our equation:

y=2-x\\y=-x+2

And put some parentheses:

y=(-1)x+(2)

We can see that this is indeed slope-intercept form.

And we can see that m is -1 and b is 2.

In other words, the slope is -1 and the y-intercept is 2.

3 0
3 years ago
Read 2 more answers
Find the area and round to the nearest hundredth??
bagirrra123 [75]

Answer:

total area = 193.31 m²

Step-by-step explanation:

rectangle area = 7 x 15 = 105 m²

semi circle area = (3.14)(7.5²)/2 = 88.31 m²

total area = 105 m² + 88.31 m² = 193.31 m²

8 0
3 years ago
I need help trying to do this
GREYUIT [131]

Answer:

me likey points ❤️❤️❤️

5 0
3 years ago
Which choice is equivalent to the expression below?
Ivan

Answer:

D

Step-by-step explanation:

.......................

3 0
3 years ago
Read 2 more answers
Other questions:
  • The mean of Holly's first six math quiz scores was 75%. After taking the seventh quiz, her mean score rose to 77%. What was Holl
    8·1 answer
  • Positive square root of 29584
    10·2 answers
  • The circumstances is 6,562.6mm what is the diameter of the target
    9·1 answer
  • I need number 15. The very bottom in bold letters.
    10·2 answers
  • The sum of 32 and 5 times a number is 17​
    8·1 answer
  • Please Help!!
    12·2 answers
  • Together, Iris and Ivan weigh 120 pounds. Iris weighs 10 pounds less than Ivan. How much does each child weigh?​
    7·2 answers
  • SOMEONE HELP FOR 15 POINTS
    7·1 answer
  • PLZ HURRY IT'S URGENT!!
    12·1 answer
  • I WILL MARK BRAINLEIST AND 20 EASY POINTS
    13·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!