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
Radda [10]
3 years ago
14

Một lô hàng có 6 chính phẩm và 4 phế phẩm, lấy ngẫu nhiên 2 sản phẩm. tìm kỳ vọng của số chính phẩm

Mathematics
1 answer:
lana66690 [7]3 years ago
4 0

Answer:

I'm sorry I didn't understand

Step-by-step explanation:

sorry

You might be interested in
Will mark brainiest
maria [59]
You should use a bar graph because that would work better
8 0
3 years ago
Read 2 more answers
The function f is such that f(x) = x^2 – 2x + 3
aev [14]

Answer:

x = - 4, x = 6

Step-by-step explanation:

Given

f(x) = x² - 2x + 3 and f(x) = 27, then equating the 2 gives

x² - 2x + 3 = 27 ( subtract 27 from both sides )

x² - 2x - 24 = 0 ← in standard form

Consider the factors of the constant term (- 24) which sum to give the coefficient of the x- term (- 2)

The factors are - 6 and + 4, since

- 6 × 4 = - 24 and - 6 + 4 = - 2, thus

(x - 6)(x + 4) = 0

Equate each factor to zero and solve for x

x - 6 = 0 ⇒ x = 6

x + 4 = 0 ⇒ x = - 4

4 0
3 years ago
Read 2 more answers
What is the probability of Red and yellow?
Pani-rosa [81]

Answer:

3/8 for red and yellow

1 for not brown

0 for purple

Step-by-step explanation:

7 0
3 years ago
Read 2 more answers
Give the standard form for 900,000 + 50,000 + 9,000 + 600 +20+7
brilliants [131]

Answer:

nine-hundred thousand plus fifty thousand plus nine thousand plus six-hundred plus twenty plus seven

Step-by-step explanation: answer above

7 0
3 years ago
Read 2 more answers
Write an equation for the following: The temperature is was 72° F and then dropped 2° per hour for the next eight hours.
murzikaleks [220]

so every hour it droped 2 degrees and it did this for eight hours you could times 2 by 8 and get 16 then minus it from 72

8 0
3 years ago
Other questions:
  • Need help with exponential functions quick <br> 35 points!!!!!!!!!!!!!!!
    9·1 answer
  • The multiplicative inverse of - 5 and 10v - 5
    14·1 answer
  • When factoring, what should be the greatest common factor of the terms left inside the parenthesis?
    12·1 answer
  • gasoline wholesale distributor has bulk storage tanks holding a fixed supply. The tanks are filled every Monday. Of interest to
    15·1 answer
  • A school is taking a group of students to the aquarium. Including chaperones, 132 people will be going on the field trip. The ra
    14·1 answer
  • The probability of choosing a tennis ball out of a bag containing 5 rubber balls, 3 tennis balls, 6 bouncy balls , and 1 squishy
    12·2 answers
  • Chicos estoy en un aprieto ayudarme pls Sabiendo que una falda es 5 € más cara que una blusa y que si compro 6 faldas y 4 blusas
    12·1 answer
  • Trinh wants to save 1,250 total after 15 months to put towards a vacation
    15·1 answer
  • Find the Area of the Shaded Region.
    5·1 answer
  • The n sequence question
    5·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!