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
denis23 [38]
3 years ago
14

How many different ways can a coach select the captain and co-captain of a team from a group of 20 people?

Mathematics
2 answers:
sergij07 [2.7K]3 years ago
5 0
The coach can select the captain in 20 ways (i.e. from all the available 20 players), and he can select the co-captain in 19 ways (i.e. after selecting the captain, there will be 19 people left).
Therefore, the coach can select the captain and the co-captain in 20 x 19 = 380 ways.
Thepotemich [5.8K]3 years ago
3 0

Answer:

Step-by-step explanation:

1. Number of peoples available to choose from = 20

\text{Ways of selecting the captain from 20 people = }_{1}^{20}\textrm {C}=20

After selecting the captain number of people left among which co captain can be selected = 20 - 1 = 19

\text{Ways of selecting the co captain from 19 people = }_{1}^{19}\textrm {C}=19

Hence, Number of ways a coach select the captain and co-captain of a team from a group of 20 people = 20 × 19 = 380

Therefore, The correct option is C. 380

2. Total number of players = 7

Number of players to be selected = 5

\text{So, number of ways of selecting 5 players out of 7 = }_{5}^{7}\textrm {C}=21

Therefore, The correct option is A. 21

3. Total number of outcomes = 20

The digits 1, 2, 3, 4, 5, 6 represent the student who make a C

Number of students who make a C at least 3 times = 13

\bf\textbf{Required Probability = }\frac{13}{20}

Therefore, The correct option is D

You might be interested in
The tree diagram represents an experiment consisting two trials
zavuch27 [327]

Answer:

0.35

Explanation:

  • P ( B and D )
  • 0.5 * 0.7
  • 0.35

<u>Follow the branch B and then branch D</u>

  • multiply both the selected probabilities to calculate total probability.

6 0
2 years ago
Read 2 more answers
A salesperson sold 20 cars last month. Seven of the cars sold were red. What percent of the cars sold were red?
amm1812
So you would just have to divide 20/7 to get the percentage of it.

The answer would be 2.85%.

4 0
3 years ago
Find the 76th term of the arithmetic sequence 16, 14, 12, ...
skelet666 [1.2K]

Answer:

-134

Step-by-step explanation:

3 0
3 years ago
Read 2 more answers
Please help! It's about systems of equations. Answer correctly i will mark brainliest
4vir4ik [10]

Answer:

Step-by-step explanation:

Y= -6

X=-2

7 0
3 years ago
Please help me ASAP thank you
DaniilM [7]

Answer:

x=17°

Step-by-step explanation:

163+x=180 (L.P)

x=180-163

x=17°

6 0
3 years ago
Other questions:
  • The capsules and montage families love writing. Last year,each capsule wrote 4 essays, each montage wrote 6 essays, and both fam
    11·1 answer
  • Determine whether each argument is valid. if the argument is valid, give a proof using the laws of logic. if the argument is inv
    9·1 answer
  • Write the quadratic equation whose roots are 6 and -2, and whose leading coefficient is 4,
    10·2 answers
  • Which of the following values is equal to − (−4.3)?<br><br> A) -4.3<br> B) 0<br> C) 4<br> D) 4.3
    15·2 answers
  • Helppppppppppppppppppppppppp
    7·1 answer
  • Linda has a bookcase with n shelves .There are 11 books on each shelf.Using n,write and expression for the total number of books
    6·2 answers
  • The number of flaws in a fiber optic cable follows a Poisson distribution. It is known that the mean number of flaws in 50m of c
    13·1 answer
  • Katie decides to sell lemonade to make some money. Katie’s mom said she will double the amount of money she makes. If Katie sell
    8·2 answers
  • A ladder leaning against a wall makes a 60° angle with the ground. The base of the ladder is 3 m from the building. How high abo
    14·1 answer
  • Someone please help me i will mark brainiest !!!!!
    5·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!