Solve for r --- (34 --- 2) Show your work!

Using the binomial distribution, it is found that there is a 0.6521 = 65.21% probability that at least 1 is defective.

For each phone, there are only two possible outcomes, either it is defective, or it is not. The probability of a phone being defective is independent of any other phone, which means that the binomial distribution is used to solve this question.

Binomial probability distribution

[tex]P(X = x) = C_{n,x}.p^{x}.(1-p)^{n-x}[/tex]

[tex]C_{n,x} = \frac{n!}{x!(n-x)!}[/tex]

The parameters are:

In this problem:

The probability that at least 1 is defective is:

[tex]P(X \geq 1) = 1 - P(X = 0)[/tex]

In which

[tex]P(X = x) = C_{n,x}.p^{x}.(1-p)^{n-x}[/tex]

[tex]P(X = 0) = C_{7,0}.(0.14)^{0}.(0.86)^{7} = 0.3479[/tex]

Then:

[tex]P(X \geq 1) = 1 - P(X = 0) = 1 - 0.3479 = 0.6521[/tex]

0.6521 = 65.21% probability that at least 1 is defective.

A similar problem is given at https://brainly.com/question/24863377

Answer:

Step-by-step explanation:

Answer:

3x + 2y = 23

Step-by-step explanation:

mangoe = x

apple = y

6x + 4y = 46

divide them by 2

3x + 2y = 23

Answer:

3

Step-by-step explanation:

each friend would have 3 pizzas

Answer:

x ≥ [tex]\frac{8}{5}[/tex]

Step-by-step explanation:

(If you need step-by-step please request)

Answer:

2 / 3

Step-by-step explanation:

( x1, y1 ) = ( - 2, 3 )

Here,

x1 = - 2

y1 = 3

( x2, y2 ) = ( - 14, - 5 )

Here,

x2 = - 14

y2 = - 5

Formula : -

Slope = ( y2 - y1 ) / ( x2 - x1 )

Slope = ( - 5 - 3 ) / ( - 14 - ( - 2 ) )

          = - 8 / ( - 14 + 2 )

          = - 8 / - 12

Slope = 2 / 3

Answer:

Step 1

Step-by-step explanation:

h/0.5 = 7

In step 1, he need to multiply 0.5 on both sides.

Instead, he divided 0.5 to 7 ( i.e ) 7/0.5, This is the mistake.

The correct solution,

Step 1 :

h/0.5 • 0.5 = 7 • 0.5

Step 2 :

h = 14

The measurement which is closest to the length of the diagonal of this rectangle in centimeters is; 20 centimetres.

The diagonal of the rectangle is the line which divides the rectangle into 2 right angled triangles.

In essence, the diagonal of the rectangle is the hypothenus of either of the triangles and can be evaluated as follows;

By Pythagoras;

D is approximately 20 centimetres.

Read more;

https://brainly.com/question/17033407

Answer:

(1,9)

Step-by-step explanation:

rhdufbfoehfjigvjf

Answer:

i believe i have to multiply and i got 4 4/5

so 4 FULL servings and 4/5 cereal servings left over

Answer:

(a) 55

(b) 63

(c) 45

Step-by-step explanation:

All four angles in a rectangle are right angles, so ∠PMN is 90∘.

∠PMN+35∘=90∘

which is the same as saying

∠PMN=90∘−35∘.

Thus, ∠PMN=55∘.

and (b) is the same so:

∠STU is 90°

∠STU = 90° − 27°

∠STU = 63°

and for (c) each angle of a square measure 90°

∠DAB= 90° − 45°

∠DAB = 45°

Answer:

32:35 is the ratio to your question.

Blue squares : Purple squares = 32 : 35

Ratio is defined as a relationship between two quantities, it is expressed one divided by the other.

A pattern has 32 blue squares for every 35 purple squares.

∵ 32 Blue squares : 35 Purple squares

∴ Blue squares : Purple squares = 32 : 35

The ratio of blue squares to purple squares = 32 : 35

Learn more about Ratio

brainly.com/question/1504221

#SPJ2

Answer:

im pretty sure the answer is =Line D.

Answer:

I think its Line D

Step-by-step explanation:

-7 is the y-intercept, so if line D keeps going down it will land on the y-intercept

Answer: B.  k = 12.1.

C. k = 13.0.

D. k = 19.9.

Step-by-step explanation: Which values of k are solutions to the inequality k>12 are B.  k = 12.1 , C. k = 13.0 , and D. k = 19.9 because it literally says k>12 so every value of k that's solutions to the inequality k>12 have to be greater than 12. Due to this B.  k = 12.1, C. k = 13.0, and  D. k = 19.9 are the correct answer choices that you should choose and the incorrect answer choices that you shouldn't choose are A. k = 11.9, and E. k = 10.2 .

Answer:k + 13.0

Step-by-step explanation:

Answer:

5/8

Step-by-step explanation:

First you need to reduce the fractions then you choose a common denominator to calculate:6/12=1/2 then you see the you see 1/4 can be a common denominator so you equal 1/2 to the denominator by 4, which means multiplying 2 by both the numerator and denominator, we get 2/4 after that you add and subtract in parentheses and you will get 1/4 then you multiply by 5 to get 5/4 the finally you have to plus 0,5 you will get 7/4 done.

Answer:

ds

Step-by-step explanation:

Answer:

Julio is taller

Step-by-step explanation:

5 5/6 > 5 1/4

Answer:

Julio

Step-by-step explanation:

Julio is taller because when you compare the fractions 5/6 is above 1/2 and 1/4 is not.

Answer:

90 bags have zips

Explanation:

Add 37 and 23 together since they both have no zip, but don't add 45 because that section of bags has zips.

37+23=60

Subtract 60 by 150.

150-60=90

90 will be your answer.

Answer:

b.

Step-by-step explanation:

As it says there is already a set up fee of $80 and it is $4 FOR EVERY advertisement, the equation would be y = 80 + 4x. Obviously, y should be greater than x since you are calculating the cost and not anything else, so b should be your answer. Even without logically guessing, the equation proves that b is correct.

Hope this helped!

Answer: y = -3x - 6

Step-by-step explanation:

One way to write a linear equation is with slope-intercept form.               Slope-intercept form is y = mx + b, where m is the slope, and b is the              y-intercept.

Thus, the equation is y = -3x - 6

Hope it helps :) and let me know if you are confused anywhere.

Answer:

y = -3x - 6

Step-by-step explanation:

Insert the information into the slope-intercept form equation:

y = mx + b

In this instance, the slope is -3 and the y-intercept value is -6. Therefore, the equation of the line is y = -3x - 6

Answer:

123

hope this helps!

mark brainliest please

Step-by-step explanation:

Answer:

A) 5

B) 20

C) 28

D) 25

Step-by-step explanation:

Hope this helps :))

Answer:

a) a-b

7-2 =5

b) 2×a + 3×b

2×7 + 3×2

14 +6 =20

c) 2ab

2×a×b

2×7×2 =28

d) (7-2) power of 2

5 power of 2

5+5 =10

Answer: 1/96059601

Don't break in

Step-by-step explanation:

First we need to find how many combinations there are.

We can find that by multiplying the four different number of options which in this case are all 99.

99 * 99 * 99 * 99

= 96059601

There are 96059601 different combinations and one correct combination.

So, the chance of them getting it is 1/96059601

It is definitely not a nice number so probably don't try and break in.

Answer:

a

Step-by-step explanation:

Answer:

Step-by-step explanation:

Hyp = √(3² + 4²) = 5

cosx = adj/hyp = 3/5

tanx = opp/adj = 4/3

3/5 / 4/3 = 3/5•3/4 = (3•3)/(5•4) = 9/20