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
Deffense [45]
3 years ago
6

a cog company produces 20 cogs a day, 4 of which are defective. Find the probability of selecting 4 cogs from the 20 produced wh

ere all are defective?
Mathematics
1 answer:
Simora [160]3 years ago
7 0

Answer:

1/4845

Step-by-step explanation:

The probability of selecting a defective cog first is

1/5

The second cog is

3/19

The third cog is

1/9

And the fourth cog is

1/17

Multiplying these together we get

1/5 * 3/19* 1/9 * 1/17  = 1/4845

You might be interested in
Ok pls help this needs to be answered fast
horrorfan [7]

Answer:

the oeange will be there for u

Step-by-step explanation:

1 then 4 then 3 then 6 then 2

8 0
3 years ago
Simplify the radical expression below.<br><br><img src="https://tex.z-dn.net/?f=3%20%5Csqrt%7B7%7D%20-%20%5Csqrt%7B63%7D%20" id=
anzhelika [568]

So for this, we can simplify √63 as such:


\sqrt{63}=\sqrt{7*9}=3\sqrt{7}


Using the simplified version of √63, we can solve it:


3\sqrt{7} -3\sqrt{7} =0


Zero is your final answer.

4 0
3 years ago
Trapezoid ABCD below is to be translated to
Anarel [89]

Answer:

17x+13y

Step-by-step explanation:

6 0
3 years ago
Bob's gift shop sold a record number of cards for Mother's Day. One salesman sold 20 cards, which was 5% of the cards sold for M
iren [92.7K]

Answer:

400 cards

Step-by-step explanation:     20\div5%

<u><em>Calculate</em></u>

<u><em /></u>\frac{20}{0.05}

<u><em>Multiply both the numerator and denominator with the same integer</em></u>

<u><em /></u>\frac{2000}{5}

<u><em>Cross out the common factor</em></u>

<u><em /></u>400

<em>I hope this helps you</em>

<em>:)</em>

8 0
2 years ago
At takeoff a plane flies at an angle of 10 degrees with the runway. After it has traveled a ground distance of 2,800 ft. Find th
Sonja [21]
<h2>Vertical distance gained from takeoff is 493.72 ft</h2>

Step-by-step explanation:

Refer the figure.

Horizontal distance = AB = 2800 ft

Angle = ∠B = 10°

We need to find AC that is h.

We have

              tanB=\frac{AC}{AB}\\\\tan10=\frac{h}{2800}\\\\h=2800\times tan10=493.72ft

Vertical distance gained from takeoff = 493.72 ft

4 0
3 years ago
Other questions:
  • 6p-10c-8 when p=6 and c=8
    10·1 answer
  • Please answer quickly!!!
    8·1 answer
  • What is 10 as a percent?
    15·2 answers
  • A distance is related to time according to the expression x = A sin(2πft), where A and f are constants. Find the dimensions of A
    13·1 answer
  • Which is greater 1/2 or 1/3
    9·2 answers
  • There are 18 fish in a 1 ft x 4 ft x 7 ft fish tank. What is the population density in the fish tank?
    11·2 answers
  • ^^^^^^^^^^^^^^^^^^^^
    6·2 answers
  • What is -3m2 x -5 x m2 ​
    9·1 answer
  • What is the equation of the line passing through the points (1, 5) and (0, -3)
    15·2 answers
  • Which set of data could represent a quadratic function?
    11·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!