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
pychu [463]
3 years ago
15

một hộp đựng 11 tấm thẻ được đánh số từ 1 đến 11. tính số cách lấy ra 4 tấm thẻ từ hộp đó để tổng các số ghi trên 4 tấm thẻ ấy l

à một số lẻ
Mathematics
1 answer:
Whitepunk [10]3 years ago
3 0

Answer:

16/33

Step-by-step explanation:

Tổng của cả 4 tấm thẻ là một số lẻ khi:

Có 1 thẻ là lẻ, 3 thẻ còn lại là chẵn, có: 6C1.5C3=60 cách

Có 3 thẻ là lẻ, 1 thẻ là chẵn, có: 5C1.6C3=100 cách

Suy ra có 160/11C4=16/33 cách

You might be interested in
Patricia is making two sizes of hamburgers: 0.5 pound and 0.25 pound. How many of each size of hamburger could she make with 3.7
e-lub [12.9K]

Answer:

The graph in the attached figure

Step-by-step explanation:

Let

x-----> the number of hamburgers of 0.5 pounds

y-----> the number of hamburgers of 0.25 pounds

we know that

The inequality that represent the situation is equal to

0.5x+0.25y\leq3.75

The solution of the inequality is the triangular shaded area

see the attached figure

3 0
3 years ago
¡ HELP Plz !<br> Graph this line using the slope and y-intercept:<br> y=1/2x-1
Sladkaya [172]
-1 is your x intercept so the first point is going to be at (0,-1) and from there go up 1 and over to the right 2 and mark another point and so one
8 0
3 years ago
Read 2 more answers
Um can y’all help me :)) plsss
Phantasy [73]

Answer:

(0+3,1) (3+3,0) (3+3x4)

5 0
2 years ago
Can Somebody Please Help
Free_Kalibri [48]

Answer:

We have to put the data for purchased item in a frequency table.

Step-by-step explanation:

The diagram is attached below.

Firstly we have to see that how many customers fall under range 0 to 5.

Then 5 to 10.

Then 10 to 15.

Finally

15 to 20.

If we go through the items purchased by customers we can see that item ranges from 0 to 5 have 4 customers.

Item purchased range from 5 to 10 have 2 customers.

Item purchased range from 10 to 15 have 7 customers.

Item purchased range from 15 to 20 have 1 customers.

Total number of customers = 14

As we have total 14 number of customers and they have varied quantity of items purchased.

6 0
3 years ago
What is the value of –21/6-1 1/4+1 3/4
aleksley [76]
It’s the answer pahaha
7 0
2 years ago
Read 2 more answers
Other questions:
  • isabel lives 3/4 mile from school, Janet lives 2/3 mile from school how much farther in miles does isabel live from school than
    14·2 answers
  • Please help!!!!!!!!!!!
    13·2 answers
  • What is the perimeter of 10 and 12?
    14·1 answer
  • Is f(x)=1/3x+2 linear or exponential
    7·1 answer
  • Nelson collected 58 cans of food during his towns food drive.
    11·2 answers
  • Find the coordinates of H' after a reflection across the parallel lines; first across y = -2 and then across y = 2. Answer in fo
    11·1 answer
  • Explain the identity property and how it is used. What are the identity elements for addition and multiplication?
    9·1 answer
  • The perimeter of a rectangle is 34 units. Its width is 6.5 units.
    9·1 answer
  • Someone Help please with work!! 15pts​
    14·1 answer
  • Use the​ add-on method for determining interest on a loan of ​$​,2540 with an annual rate of 6​% and a term of 4 years.​ Then, d
    10·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!