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
raketka [301]
3 years ago
8

A factory robot recently examined some bulbs, of which 2 were flawed and 18 were not. If 30 more bulbs are examined, predict how

many will be flawed.
Mathematics
1 answer:
Oksanka [162]3 years ago
5 0

Answer:

3 bulbs should be flawed

Step-by-step explanation:

2+ 18 = 20

20 bulbs were examined

2/20  = 1/10 were flawed

looking at the next 30 bulbs

30 * 1/10 = 3

3 of the next 30 bulbs should be flawed


You might be interested in
Software to detect fraud in consumer phone cards tracks the number of metropolitan areas where calls originate each day. It is f
pashok25 [27]

Answer:

0.999987

Step-by-step explanation:

Given that

The user is a legitimate one = E₁

The user is a fraudulent one = E₂

The same user originates calls from two metropolitan areas  = A

Use Bay's Theorem to solve the problem

P(E₁) = 0.0131% = 0.000131

P(E₂) = 1 - P(E₁)  = 0.999869

P(A/E₁) = 3%  = 0.03

P(A/E₂) = 30% = 0.3

Given a randomly chosen user originates calls from two or more metropolitan, The probability that the user is fraudulent user is :

P(E_2/A)=\frac{P(E_2)\times P(A/E_2)}{P(E_1)\times P(A/E_1)+P(E_2)\times P(A/E_2)}

=\frac{(0.999869)(0.3)}{(0.000131)(0.03)+(0.999869)(0.3)}

\frac{0.2999607}{0.00000393+0.2999607}

\frac{0.2999607}{0.29996463}

= 0.999986898 ≈ 0.999987

6 0
3 years ago
Can somebody help me with this please?
Svetach [21]
Multiply both sides by -4/7
x = 40 \times ( \frac{ - 4}{7} ) \\ x =  \frac{ - 160}{7}
7 0
3 years ago
What multiplies together to get 10 but adds together to get -11
sveticcg [70]
-10 and -1 multiply to get 10 and add to get -11
6 0
4 years ago
Read 2 more answers
Principal is __________.
bearhunter [10]

Answer:

B. the initial amount of money invested

Step-by-step explanation:

Principal is the money invested or the money that a lender lend the borrower. Such money is the basis on which the interest payable will be calculated after considering the numbers of years and installments.

4 0
3 years ago
PLEASE ASSIST!! EXTRA POINTS PLUS BRAINLIEST ANSWER I’LL TRADE YOU MY MOM SHE MAKES RLLY GOOD COOKIES! Find the slope of the giv
FinnZ [79.3K]

Keep your mom, you only have one. But anyway;

Use the Pythagorean Theorem: A^2 + B^2 = C^2

12^2 + 21^2 = C^2

144 + 441 = C^2

585 = C^2

square root of 585 = approximately 24.2

8 0
3 years ago
Other questions:
  • Pls help i’ll give u a brainlest
    9·2 answers
  • Help with 3 problems! Worth 23 points!!!
    8·1 answer
  • Can someone please help me I really need help please help me
    13·1 answer
  • NamePerStep 3: How tall is a tower of one hundred pHow is a tower of one million pennies?taExplain any patterns you see. Can you
    9·1 answer
  • Write the fraction or mixed number and the decimal shown by the model
    9·1 answer
  • What is the solution to this inequality?
    6·2 answers
  • A company that makes trail mix uses 1 3/8 pounds of peanuts for every 2/3
    10·2 answers
  • SOMEONE PLS HELP ME WITH THIS
    12·2 answers
  • to make lemonade , bart poured 3 gallons of water into a large container . he added 1 gallon of lemon juice. how many quarts of
    10·1 answer
  • 4. Find the measure of x. Then find the measure of DE. Plzzz show work!
    15·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!