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
Assoli18 [71]
3 years ago
15

What is the probability of all cogs being defective

Mathematics
1 answer:
Sonbull [250]3 years ago
5 0

Prob (first defective) = 4 / 20 = 1/5

Prob(2nd defective) = 3/19

Prob (3rd defective) = 2/18 = 1/9

Pron 4th defective) = 1/ 17

Prob ( all 4 defective) = 1/5 * 3/19 * 1/9 * 1/17 = 1 / 4845 answer

You might be interested in
Is mass proportional to the force of gravity??? <br> PLZZ HELP WILL MARK THE BRAINLIEST
garri49 [273]
Noooo definitely not.
5 0
3 years ago
Read 2 more answers
Frank's recipe for cookies calls for 3/4 cup of sugar 20 1/2 cup of flour and 3 eggs if he wants to use half as much sugar and t
sergejj [24]
Frank will use 3/8 cup of sugar, 61 1/2 cups of flour, and 9 eggs. I know this because...

3/4 divided by 2 is 3/8
20 1/2 times 3 is 61 1/2
3 times 3 is 9
5 0
3 years ago
Drag the tiles to the boxes to form correct pairs.
SOVA2 [1]

Answer:

Step-by-step explanation:

Hello

Match the points on the number line with the rational numbers.

a __ -6/8 = -(2 x 3)/(2 x 4) = -3/4

b __ -2/8 = -2/(2 x 4) = -1/4

c __ -4/8 = -4/(4 x 2) = -1/2

d __ 8/8 = 1

e __ 13/8

3 0
3 years ago
If it takes 5 men 20hours to brick a house, how long will it take 2 men to do the job if they work at the same rate?
Elden [556K]

To find the contribution of each man (this is a sexist problem as women could work as well, but that’s besides the point) take 5/2 and then multiply that value by 20 and you’ll find it takes 50 hours for two men to do it.

Answer: 50 hours

4 0
3 years ago
Read 2 more answers
What is the value of X???
natta225 [31]

Answer:

x=5

Step-by-step explanation:

The angles of a trangle have to add up to 180 degrees. With that information, we can create an equation:

27+98+(10x+5)=180

125+10x+5=180

130+10x=180

-130         -130

______________

10x=50

/10   /10

x=5

8 0
3 years ago
Other questions:
  • How are the values of the two 4s related in .044
    9·2 answers
  • How do i order 0.5,0.41,3/5 from least to greatest
    13·1 answer
  • A rectangle is 1/2 ft long and 3/4 ft wide. What is the area of the rectangle? Enter your answer as a fraction in the box.
    8·2 answers
  • 1. What is 15% of 60?
    5·2 answers
  • Help me for a brainllest. A theater holds 2,680 seats. The lower level has 100 less than 2 times as many seats as the upper leve
    12·2 answers
  • Calculate the length of the hypotenuse 10,14
    11·1 answer
  • Please help:
    8·1 answer
  • Help me please!!!!!!!!
    5·1 answer
  • How can I<br> arrange<br> this
    6·1 answer
  • Question 3 of 10
    14·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!