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
Andrew [12]
3 years ago
11

How many different ways can a club choose a committee of 4 from 15 members?

Mathematics
1 answer:
boyakko [2]3 years ago
5 0
It is done by this formula

combinations = n! / [r! * (n - r)!]

combinations = 15! / [4! * 11!]
combinations = 15 * 14 * 13 * 12 * 11! / [4! * 11!]
combinations = 15 * 14 * 13 * 12 / 4 * 3 * 2
combinations = 15 * 7 * 13
combinations = 1,365

answer is b

You might be interested in
If the slope of a line is 2 and its y-intercept is 5, what is the equation of the line?
CaHeK987 [17]
Hello,

y=2x+5
==========
(y-5)=2(x-0)

7 0
3 years ago
Read 2 more answers
Joe has to take two quizzes tomorrow. He has only enough time to study for one of them. The science quiz has 6 true or false que
finlep [7]

Answer:

C) English

Step-by-step explanation:

I don't really know how to explain it, so I'll show you instead.

For science, there are 6 of 6 correct answers with a 0.5 chance of answering correctly.

So,

0.5 x 0.5 x 0.5 x 0.5 x 0.5 x 0.5 = 0.016

For English, there are 4 of 4 correct answers with a 0.25 chance of answering correctly.

So,

0.25 x 0.25 x 0.25 x 0.25 = 0.004

They will have to study English (0.004) because it is lower than science (0.016).

4 0
2 years ago
Read 2 more answers
26 push-ups in 2 minutes
OlgaM077 [116]

Answer:

13 per minute

Step-by-step explanation:

6 0
3 years ago
im stupid. honestly. just help me pls. this is probably really easy but i aint done any maths in over a month so ion remember ho
KATRIN_1 [288]

Answer:

19 coins

Step-by-step explanation:

We know that mean is the sum of all the elements divided by the number of elements there are: m = t/n, where m is the mean, t is the total sum, and n is the number of elements.

Here, we are given the mean number of coins for all 27 + 18 = 45 children is 16, so m = 16 and n = 45. Then:

m = t/n

16 = t/45

t = 720

This t means that the total number of coins that all the boys and girls have is 720 coins.

Now, we also know the mean number of coins for the boys only, which is 14. Since there are 27 boys, then:

m = t/n

14 = t/27

t = 378

This t means the total number of coins all the boys have.

Subtracting 378 from 720, we get 342, which is the total number of coins the girls have. We also know there are 18 girls, so:

m = t/n

m = 342 / 18 = 19

Thus, the mean is 19 coins.

7 0
3 years ago
Read 2 more answers
allison is buying packages of sliced meat for the picnic each package has 20 slicrs of mest 5 are turkey if she buys 80 how many
morpeh [17]
If allison buys 80 packs of meat for the picnic and 5 of those slices in each pack are turkey she would end up with 400 slices of turkey.
7 0
3 years ago
Other questions:
  • Rico spent $87.00 to go to the movies on Friday night. He spent $25.75 on popcorn and drinks and paid $12.25 for each movie tick
    6·2 answers
  • What is the answer!?
    5·2 answers
  • If y varies inversely as the square of x, and y= 1/8 when x=1, find y when x=5
    8·2 answers
  • Solve for x 9-2x=35 <br><br>answers<br>-2<br>48<br>-22<br>-13
    11·2 answers
  • The Jelly Junior High school color is made by mixing red paint with yellow paint. The ratio of red to yellow is 3 to 5. How much
    8·1 answer
  • What common base can be used to rewrite each side of the equation<br> 2<br> 3<br> 5<br> 8
    5·2 answers
  • To find the quotient of two fractions, you first need to rewrite the division problem as an equivalent multiplication problem. F
    6·1 answer
  • 20 points <br><br> Evaluate the function graphically find f(-6)
    12·1 answer
  • Giving 25 points + brainliest if its correct
    14·1 answer
  • What transformation is used on Data Set 1 to produce Data Set 2?
    14·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!