Can someone help me answer these

Answer:

0.1978 is the probability that at least 5 keyboards will have mechanical defect.

Step-by-step explanation:

Solution:

Given:

A repair facility has 25 failed keyboards.

10 keyboards have electrical defect.

15 of which have mechanical defect.

Randomly selected keyboard= 6

The set of A is the set of keyboards with electrical defect.

And  the set of B is set of keyboards with mechanical defect.

N(A U B) = n (A) + n(B) – n (A ∩B)

Probability of at least 5 will have mechanical defect is:

                              = p(  5 mechanical defect  U 6 mechanical defect)

                              = p(5 mechanical defect  ) + p(6 mechanical defect)

                                =(15 C 5 x 10 C1 + 15 C6 X 10C0) / 25 C6

                                = 3003 X 10 / 177100 + 5005 X 1 / 177100

                                = 30030 + 5005 / 177100

                               = 35035 / 177100

                              = 0.1978

0.1978 is the probability that at least 5 keyboards will have mechanical defect.

Answer:

A randomly chosen female voter is Other.

Step-by-step explanation:

Well, you just have to read it and ask yourself which one is specific to only one gender, or which one talks about only one gender, so the answer here is:

A randomly chosen female voter is Other.

Answer:

a randomly chosen voter is other

Step-by-step explanation:

because the answer above is wrong and this is right :)

Answer:

63 men said no.

Step-by-step explanation

3/5 * 2/2 = 6/10, 6/10 - 3/10 (women) = 3/10 meaning 7/10 men said no. 90*1.7 = 153, 153-90=63

Answer:

30%. Remember the question is what percentage?

Step-by-step explanation:

Given Informations:

Men = 90

Women = 60

Total number (men + women) = 150.   ...... (1)

For Yes Members,

3/5 of the people said YES.

3/5 of 150 = 90 .......                                        (2)

This means that out of 150, 90 people said YES.

However, we dont know what ratio are men or women all we can deduce is that 90 said YES.

From the question, 3/10 are women that said YES.

Meaning 3/10 of 90 are women = 27. ..                  (3)

27  women said YES therefore

90 -27 = 63  Men said YES.

FOR NO Members,

If 90 out of 150 said yes, then 60 said NO.

However, we dont know the ratio of Men and Women that said NO. What we can do is to solve it from the known to the unknown.

For Men,

The total number is 90.

63 said YES, therefore (90 - 63 ) definitely said NO.

= 27 Men said NO                         (4)

For Women,

The total number of women is 60

27 said YES, Therefore (60 - 27) said NO

= 33 women said NO.      ( 5)

The question is what percentage of Men said NO?

Percentage =

number of men that said NO / The total number of Men  * 100

= 27/90 * 100

=30%

To Prove the Answer

If you agree with Eq 2, which says 90 people said yes. Therefore, (150 -90) = 60 said NO.

Remeber the 60 is inclusive of Men and Women.

Let's see, if we will get 60 when we add the number of men and women we got that said NO.

Add the value in Eq 4 + Eq 5.

27 + 33 = 60.

This is a higher grade than mine i dont know sorry :(

Answer:

I think I know what the answers are but I can't be sure.

Step-by-step explanation:

the following are my reminders in using this module

  By the property of alternate interior angles, Option (1) is the correct statement.    

    From the figure attached,

    Property of the alternate angles states, if two parallel lines are cut by a transversal, then the alternate angles are congruent.

By this property,

 Lines XW and YZ are the parallel lines intersected by a transversal WY.

Here, ∠XWY and ∠ZYW represent the interior angles between the parallel lines and the transversal.

 Therefore, interior alternate angles ∠XWY and ∠ZYW will be congruent.

Hence, Option (1) will be the correct option.

Learn more,

https://brainly.com/question/12101094

Answer:

Decision rule

   Reject null hypothesis

Conclusion

There is significance evidence that the true mean is different from 0.86

Step-by-step explanation:

From the question we are told that

  The population mean   [tex]\mu  = 0.86[/tex]

   The  sample is  mean is [tex]\=  x  =  0.8708[/tex]

  The standard deviation is  [tex]\sigma =  0.0068[/tex]

The  level of significance is  [tex]\alpha  =  0.01[/tex]

  The  sample size n =  3

The null hypothesis is  [tex]\mu =  0.86[/tex]

The alternative hypothesis  is [tex]\mu \ne  0.86[/tex]

Generally the test statistics is mathematically represented as  

    [tex]z =  \frac{\=  x  - \mu }{ \frac{\sigma}{\sqrt{n} } }[/tex]

=> [tex]z =  \frac{ 0.8708 - 0.86 }{ \frac{0.0068}{\sqrt{3} } }[/tex]

=>  [tex]z =  2.751  [/tex]  

Generally  p- value is mathematically represented as

       [tex]p-value =  2 P(z >2.751   )[/tex]

From the z-table  

        [tex]P(z >2.751 ) =  0.0029707[/tex]

So

     [tex]p-value =  2 *  0.0029707[/tex]

=>   [tex]p-value =  0.00594 [/tex]

From the obtained question we see that  [tex]p-value  <  \alpha[/tex]

Hence we reject the null hypothesis

Answer:

Your answer is " the same as "

Step-by-step explanation:

Answer:

same as

Step-by-step explanation:

10^5 is 100000, and 100 times 4.25 is 425, so it must be 425000! You're welcome!

Answer:

Hey Army! The correct answer would be A. 37.1cm

Step-by-step explanation:

I got this correct on my test :)

Answer: f

Step-by-step explanation:

11 is on RHS or the right hand side

therefore the variable in LHS or left hand side is f

hope it helped u,

pls put thanks

Answer:

Step-by-step explanation:

If a cheese sandwich consists of 2 slices of bread and 3 slices of cheese, in order to determine the number of whole cheese sandwiches that can be prepared from 44 slices of bread and 69 slices of cheese, we will use the equality postulate as shown;

1 cheese sandwich = 2 slices of bread

x cheese sandwiches = 44 slices of bread

cross multiply

2 * x = 1 * 44

2x = 44

divide both sides by 2

2x/2 = 44/2

x = 22

Similarly;

1 cheese sandwich = 3 slices of cheese

y cheese sandwiches =  69 slices of cheese

cross multiply

3 * y = 1 * 69

3y = 69

divide both sides by 3

3y/3 = 69/3

3y = 23

Since both values of x and y are greater than or equal to 22 hence 22 sandwiches can be prepared from 44 slices of bread and 69 slices of cheese.

Since the amount of cheese sandwiches made from slices of bread (22) is not up to that made from slices of cheese (i.e 23), hence the ingredient that limits the number of sandwiches that can be made is the slice of bread

B^3 = 1000

Take the cubic root of both sides:

b = ∛1,000

∛1000 = 10 x 10 x 10

b = 10

Answer:

Answer is attached below

Step-by-step explanation:

A length of fabric sampled = 10 yards

number of flaws in a piece of fabric having  length = l yards

Poisson distribution mean = 0.02l

If the flaws are > k  = process out of control hence would be stopped and fixed

Calculate The value of  K  such that the probability of stopping the process when it is really in control is at most 5%

using Poisson distribution

attached below is the detailed solution

Answer:

  $729.00

Step-by-step explanation:

The tax is ...

  0.08 × $675 = $54.00

So, the total cost of the bike is ...

  $675 +54 = $729.00

Answer:

Quadratic equations has same pair of solutions.

Answer:

2.7 cups of flour

Step-by-step explanation:

75% of 3.6 is 2.7

Answer:

IDEK That is a bunch of numbers

Answer:

The answer is D

Step-by-step explanation:

the y is +10

slope is -1/3

Answer(-14x power2+18x)

Answer:

The answer is "[tex]\bold{ \mu =0.967, x=3, \ and \ e= 2.718}[/tex]".

Step-by-step explanation:

A distribution of poulet applies because it deals through events (bomb hits) over even a sample space (the region with [tex]0.95 \ km^2[/tex] area).  

Its average hit number per area is:  

[tex]\to \mu = \frac{\text{Number of hits of bomb}}{ \text{number of regions number}}[/tex]

       [tex]=\frac{535}{553} \\\\= 0.967 \\\\[/tex]

[tex]\to x = 3\\\\\to e = 2.718[/tex]

Answer:

Step-by-step explanation:

y - 6 = 3(x + 5)

y - 6 = 3x + 15

y = 3x + 21

Answer:

49x0.08= 3.92 l

Step-by-step explanation:

so, you must order 4 bottles

Answer:

4 bottles

Step-by-step explanation:

49×0.08=3921

Answer and Step-by-step explanation:

The rational function is the function that can be written in terms of ratio that contains two polynomial functions in which the denominator is not equivalent to zero

Now the two questions that should be asked which are as follows:

1. Translate real life to rational functions.

2. Process for translate to real life to rational functions

These two questions should be asked

The two question that I want to ask to clarify the process of translating real life situation to rational function are

For better understanding, lets explain what rational function means.

From the above we can therefore say that the answer The two question that I want to ask to clarify the process of translating real life situation to rational function are

Learn more about rational functions from:

https://brainly.com/question/19044037

Answer:

Step-by-step explanation:

parallel angles are equal

3x + 21 = 6x - 60

combine similar terms:

3x - 6x = -60 - 21

-3x = -81

x = 81/3

x = 27

now, plugin the value of x=27 back into the equation to get the angle:

= 3x + 21

= 3(27) + 21

= 102

= 6x - 60

= 6(27) - 60

= 102

as you noticed, both values are equal 102 = 102 because its a parallel angles

so the equation is 3x + 21 = 6x - 60

================================

Step-by-step explanation:

16. d-4 = -7

or, d = -7+4

or, d = -3

therefore, d = -3.

17. c-34 = 20

or, c = 20+34

or, c = 54

therefore, c = 54

18. a-4 = -18

or, a = -18 + 4

or, a = -14

therefore, a = -14

19. r-3 = 8

or, r = 8+3

or, r = 11

therefore, r = 11

20. z-100 = 100

or, z = 100+100

or, z = 200

therefore, z = 100

21. 5 = d - 1

or, 5+1 = d

or, 6 = d

or, d = 6

therefore, d = 6