![subject](/tpl/images/cats/mat.png)
Mathematics, 29.07.2021 14:00 matthewsorrow02
Từ một hộp có 7 bi xanh và 2 bi đỏ, lấy lần lượt (không hoàn lại) 2 bi (mỗi lần lấy một bi). Tính xác suất để lần thứ nhất chọn được bi đỏ biết rằng lần thứ hai chọn được bi đỏ
A. 0,1429
B. 0,2378
C. 0,3510
D. 0,0925
![ansver](/tpl/images/cats/User.png)
Answers: 3
![](/tpl/images/ask_question.png)
![](/tpl/images/ask_question_mob.png)
Another question on Mathematics
![question](/tpl/images/cats/mat.png)
Mathematics, 21.06.2019 14:30
Simonne used the following steps to simplify the given expression. 12 - 3(-2x + 4) step 1: 12 + (–3)·(–2x) + (–3)·(4) step 2: 12 + 6x + (–12) step 3: 12 + (–12) + 6x step 4: 0 + 6x step 5: 6x what property of real numbers was used to transition from step 3 to step 4? a. identity property of addition b. inverse property of addition c. associative property of addition d. commutative property of addition
Answers: 3
![question](/tpl/images/cats/mat.png)
Mathematics, 21.06.2019 17:40
Given f(x)= 9x+1 and g(x)=x^3, choose the expression (f*g)(x)
Answers: 2
![question](/tpl/images/cats/mat.png)
Mathematics, 21.06.2019 18:40
Which statements regarding efg are true? check all that apply.
Answers: 1
![question](/tpl/images/cats/mat.png)
Mathematics, 21.06.2019 22:00
Prove sin2a + cos2a - 1 / sin2a + cos2a + 1 = 1 - tana / 1 + cota
Answers: 2
You know the right answer?
Từ một hộp có 7 bi xanh và 2 bi đỏ, lấy lần lượt (không hoàn lại) 2 bi (mỗi lần lấy một bi). Tính xá...
Questions
![question](/tpl/images/cats/en.png)
English, 20.11.2020 23:30
![question](/tpl/images/cats/mkx.png)
![question](/tpl/images/cats/himiya.png)
Chemistry, 20.11.2020 23:30
![question](/tpl/images/cats/mat.png)
Mathematics, 20.11.2020 23:30
![question](/tpl/images/cats/mat.png)
![question](/tpl/images/cats/en.png)
![question](/tpl/images/cats/mat.png)
![question](/tpl/images/cats/himiya.png)
Chemistry, 20.11.2020 23:30
![question](/tpl/images/cats/mat.png)
![question](/tpl/images/cats/mat.png)
Mathematics, 20.11.2020 23:30
![question](/tpl/images/cats/mat.png)
![question](/tpl/images/cats/en.png)
English, 20.11.2020 23:30
![question](/tpl/images/cats/es.png)
![question](/tpl/images/cats/mat.png)
Mathematics, 20.11.2020 23:30
![question](/tpl/images/cats/en.png)
English, 20.11.2020 23:30
![question](/tpl/images/cats/mat.png)
Mathematics, 20.11.2020 23:30
![question](/tpl/images/cats/istoriya.png)
![question](/tpl/images/cats/en.png)
![question](/tpl/images/cats/fizika.png)
Physics, 20.11.2020 23:30