A shipment of 13 microwave ovens contains six defective units. A vending company purchases four units at random.
(a) What is the probability that all four units are good?

(b) What is the probability that exactly two units are good?

(c) What is the probability that at least two units are good?

Answers

Answer 1
Not sure but I think

a) 4/6 which is 66.67%
b) 2/6 which is 33.33%
c) 4/6 which is 66.67%

i haven’t even finished high school so please don’t blame me if im wrong I do think that is the answer

Related Questions

in the school library there are 4850 Hindi and English books if the Hindi books are 42% find the number of English books in the library​

Answers

Answer:

2813 English books

Step-by-step explanation:

Hindi books are 42% of 4850

42 ÷ 100 = 0.42

0.42 × 4850 = 2037 Hindi books

number of English books = total number of Hindi and English books - number of hindi books

4850 - 2037 = 2813 English books

5. The vertices of AABC are A(-5, 4), B(-2, 4), and C(-4, 2). If AABC is reflected across the y-axis, find the coordinates of the vertex C'.​

Answers

Answer:

C'(4, 2)

Step-by-step explanation:

The vertex C has coordinates:

x = - 4, y = 2

If the triangle reflected over the y-axis, the y-coordinates of C and C' will be same but the x-coordinate will change to opposite.

So the vertex C' will have coordinates:

x = 4, y = 2

Prior Skill Review: Which ordered pair is a solution of the system 2x – y < 5 and 2 + 2y > 2?

Answers

Answer:

B) (3, 2)

Step-by-step explanation:

Graph the inequalities and plot the points.

See attached.

As we see, the solution is the option B, point (3, 2). All the other points are either outside or on the dashed line.

Graph attached

Refer to the attachment

Second one should be 2x+2y>2

factories the following
5a + 5b

Answers

Answer:

5(a+b)

Step-by-step explanation:

5(a)+5(b)

5(a+b)

Answer:

5a + 5b

= 5 ( a + b )

If k(x) = 5x - 6, which expression is equivalent to (k + k)(4)?

Answers

Answer:

28

Step-by-step explanation:

First add the Ks together into 2k to make that simpler, 2k(x) means the equation would be 2(5x-6) making it 10x -12. Then substitute 4 into x to get 10(4) -12 = 28

Answer: 28

Answer is 28.

Step-by-step explanation:

Use the given functions to set up and simplify. (k + k) (4) = 28.

Hope this helps =)


Evaluate 2a^2 – 3ab + b^2-
4a + b when a =
-4 and b =
- 2.

Answers

Answer:

26

Step-by-step explanation:

[tex]2(-4)^2 -(3)(-4)(-2)+(-2)^2-(4)(-4)-2[/tex] [tex]2(16)-(-12)(-2) + 4 - (-16)-2[/tex] [tex]32 - 24 + 20-2[/tex] [tex]8+20-2[/tex] [tex]28-2[/tex] [tex]26[/tex]

What is the slope of the line that passes through the points (-7, -2) and (-15, -14)

Answers

The slope of the line that passes through the points (-7, -2) and (-15, -14) is 3/2.

The given coordinate points are (-7, -2) and (-15, -14).

What is slope of a line?

The slope of the line is the ratio of the rise to the run, or rise divided by the run. It describes the steepness of line in the coordinate plane.

The formula to find the slope of a line is slope = (y2-y1)/(x2-x1)

The slope of the line is

Put (x1, y1) =(-7, -2) and (x2, y2)=(-15, -14)

Slope = m= (-14-(-2))/(-15-(-7))

= -12/(-8)

= 3/2

Therefore, the slope of the line that passes through the points (-7, -2) and (-15, -14) is 3/2.

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ILL GIVE BRAINELST

The Inuit were the only early people on North America to make lamps for light.

True or False

Answers

Answer:

True

Step-by-step explanation:

Answer:

true

Step-by-step explanation:

Which expression is equivalent to 12^7 times 12^4?
a. 3^11 times 4^11
b. 12^28
c. 1/12^11
d. (12^5)^6

Answers

Answer:

a.12^7 times 12^4=3^11 times 4^11

Brainliest if correct

Answers

Answer:

w=4

Step-by-step explanation:

28=14w-7w whenever you work it out it equals w=4... happy to help :)

Answer:

w = 4

Step-by-step explanation:

Rewrite the equation as 14w - 7w = 28

Now subtract 7w from 14w

7w = 28

Divide

7w/7 = 28/7

28/7 = 4 > w = 4

PLEASE HELP ME QUICKKK, FIRST CORRECT PERSON GETS BRAINLIEST​

Answers

Answer:

D) 13/100 = 2500/X

Step-by-step explanation:

..........

The manufacturing operations of Cullumber, Inc. had the following inventory balances for the month of January:

January 1. January 31
Raw Materials. $12,720 $13,780
Work in Process 22,260. 24,380
Finished Goods. 14,840 12,720

Cullumber transferred $286,200 of completed goods out of Work in Process Inventory during January.

Compute the cost of goods sold for January.

Cost of goods sold:

Answers

Answer: COGS= 288,320

Step-by-step explanation

Beginning Finished Goods + Transferred of completed goods out of W/P - Ending Finiished Goods.

14,840 + 286,200 - 12,720 = 288,320

Find the slope of each line.

HELP ME PLEASE!!! 15 PTS!!!

Answers

Answer:

slope = 1/3

explanation:

recall the formula to find slope: [tex]\frac{y2-y1}{x2-x1}[/tex]Here given ( dotted ) coordinates: (4,1),(-2,-1)

Steps:

Using the formula:

[tex]\frac{-1-1}{-2-4}[/tex][tex]\frac{-2}{-6}[/tex][tex]\frac{1}{3}[/tex]

Solution:

Find the slope (y₂ - y₁/x₂ - x₁) using the two given points.

Given points: (-1,2) and (1,-4)

y₂ - y₁/x₂ - x₁ = Slope=> -4 - 2/1 - (-1) = Slope=> -6/1 + 1 = Slope=> -6/2 = Slope=> -3 = Slope

Hence, the slope of the line is -3.

Help please I don’t understand geometry

Answers

It would be the second option.

Good luck :D

Answer:

B

Step-by-step explanation:

How I saw it is that in the example picture the gave a square and then 1/2 of that so I chose B.
Hope this helps! Have a great day!!

If correct I will give you brainliest ​

Answers

Answer:

x=2×-1÷4

NOW

or,2x-1÷4

or,3÷4

or,0.75 answer

Answer:

2x+3y-3x-5y

2x-3x+3y-5y

-1x-2y

3x 3/5 help me please

Answers

Answer:

9/5

Step-by-step explanation:

it is because 3/1 × 3×5

so which means 9/5

Answer:

1.8

Step-by-step explanation:

first you make the 3 3/1 then multiply 3/3 which are the numerators so that is 9 then you multiply the imaginary 1 that is under the 3 to the 5 so you get 9/5 and that simplified is 1 4/5 and then put that into a decimal is 1.8

what is the areas of 12cm and10cm​

Answers

The figure above is a triangle. The area of a triangle is equal to: A=1/2B•H

We see that the segment of 10cm is an altitude bisector, so that is the height of the triangle. The base is 12 cm. Therefore:

A=1/2(12)•(10)

A=120/2

A=60cm^2

16 teams, each with the same number of people, enter a quiz. At the
semifinal stage there are 12 people left in the competition
How many people entered the quiz?

Answers

Answer

48

Step-by-step explanation:

Semi-finals implies there are FOUR teams left...12 people implies THREE people per team

Find the product. Simplify your answer. -4(4c+ 4)​

Answers

Answer: -32c

Step-by-step explanation: -4(4c+4) -4 x 4c= -16c.  -4 x 4= -16

New equation: -16c + -16

Answer: -32c

- means negative, not subtraction

Find the area of the shaded parts of these shapes​

Answers

Answer:

7.70m

Step-by-step explanation:

A = π r²

small A = π 1.4m²

= 6.1575m

big A =  π 2.1m²

= 13.8544m

Shaded A = big - small

= 13.8544m - 6.1575m

= 7.70m

Choose the equation that best matches the problem: Zachary grew a small garden as part of a science experiment. After observing his plants for several weeks, he noticed that 2/4 of the plants had yellow blossoms. Of the plants with yellow blossoms, 1/3 had dark green leaves. What fraction of the plants had yellow blossoms with dark green leaves?


2/4-1/3

2/4+1/3

2/4x2/4

2/4x1/3

Answers

Answer:

I think its 2/4+1/3

Step-by-step explanation:

I tried to do myself.

Answer:

2/4 X 1/3

Step-by-step explanation:

Ms. reed makes salad dressing by combining oil and vinegar. she combines 8 fluid ounces of oil and 3 fluid ounces of vinegar to make one batch. Ms. Reed makes 3 batch of salad dressing. How many total cups of salad dressing does she makes ?

Answers

By performing a change of units, we will see that she did make 1.375 cups of salad dressing.

How many total cups does she make?

First, we know that she combines 8 oz of oil and 3 oz of vinegar, then the total volume in ounces is:

V = 8oz + 3 oz = 11 oz

Now we want to know how many cups there are in 11 ounces, so we need to perform a change of units.

We know that:

1 oz = 0.125 cups

Then we can write:

11 oz = 11*(1 oz) = 11*(0.125 cups) = 1.375 cups

If you want to learn more about changes of units, you can read:

https://brainly.com/question/9032119

Find five consecutive odd integers if the sum of the first three integers is 7 more than the sum of the last two.

Answers

Answer: 15, 17, 19, 21, 23

Step-by-step explanation:

You can let the middle number = x, then the numbers are

x-4, x-2, x, x+2, x+4

Plugging it back in to what is given,

x-4+x-2+x = 7+x+2+x+4

3x-6 = 2x + 13

x = 19

The numbers are 15, 17, 19, 21, 23

The first odd integer is 15, and the five consecutive odd integers are 15, 17, 19, 21, 23

What is Sequence?

Sequence is an enumerated collection of objects in which repetitions are allowed and order matters.

Let x be the first odd integer, then the next four odd integers would be x+2, x+4, x+6, and x+8.

According to the problem, the sum of the first three integers is 7 more than the sum of the last two, which can be expressed mathematically as:

x + (x+2) + (x+4) = (x+6) + (x+8) + 7

Simplifying the equation, we get:

3x + 6 = 2x + 21

Subtracting 2x and 6 from both sides, we get:

x = 15

Therefore, the first odd integer is 15, and the five consecutive odd integers are 15, 17, 19, 21, 23

To learn more on Sequence click:

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George buys 7 pairs of pants and uses a discount for $11 off.
He spends $73 total.
What is p, the cost of each pair of pants?

Answers

This situation can be represented by the equation 7p–11=73.

The cost of each pair of pants is $12.

What is expression?In mathematics, an expression or mathematical expression is a finite combination of symbols that is well-formed according to rules that depend on the context.Mathematical symbols can designate numbers (constants), variables, operations, functions, brackets, punctuation, and grouping to help determine order of operations and other aspects of logical syntax.

Given is that George buys 7 pairs of pants and uses a discount for $11 off. He spends $73 total.

We can write the equation as -

7p - 11 = 73

7p = 84

p = 12

Therefore, the cost of each pair of pants is $12.

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A number from 1 to 10 is chosen at random. What is the probability of choosing a 2
or an even number?

Answers

Answer:

5/10

Step-by-step explanation:

there are 5 even number so the probability of choosingan even number is 5/10

What’s the correct answer for this? Any help would be appreciated

Answers

13.60
109 x 16 = 1744
1744/500 = 3.488
3.488 x 3.90 = 13.6032

Which of the following indicates that AQRS and ATUV are similar?
U
R
Q
S
т
O A. AQRS ~ ATUV
B. AQRS = ATUV
C. AQRS= ATUV
O D. AQRS ATUV

Answers

b and c are similar to eachother

The indication of QRS and TUV are similar is QRS ~ TUV.

What is Similarity?

Similar triangles are triangles that have the same shape but differ in size. Similar items include all equilateral triangles and squares with any side length. In other words, if two triangles are identical, their corresponding angles and sides are congruent and in equal proportion. The " ~ " sign here denotes the resemblance of triangles.

The three-sided polygon is the triangle. The following is the criteria for triangle similarity:

Corresponding angles of both triangles are equal, and corresponding sides of both triangles are proportional to each other.

In Triangle QRS and TUV the similarity sign is used.

We know the ≅ is the sign of Congruence.

and, ~ is the sign of Similarity.

So, the sign of Similarity is QRS and TUV.

Learn more about Similarity here:

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Seven more than the product of a number and 9 equals 3.​

Answers

Answer:

9x+7=3

Have a great day!

(x•9)+7=3

product is multiplication, if ur finding that and adding 7.

assume your salary was $30,000 in 2010 and $40,000 in 2012. if your salary follows a linear growth pattern, what will your salary be in 2015? ​

Answers

with the given info it would be +5,000 every year leaving you with 55,000 as the answer
2019 - 2016 = 3 years.
30,000 * 1.08^3 = 37,791.36.
because of inflation, if something cost 30,000 today, it will cost 37,791.36 three years from now.
in order to pay for that same things three years from now, you need to be making 37,791.36 dollars.
your salary needs to grow by 8% a year just to keep up with inflation.
if you make less, you lose buying power.
if you make more, you gain buying power.

A rectangular park is 56 miles wide and 157 miles long.



What is the area of the park?



Enter your answer as a mixed number in simplest form by filling in the boxes.

$$
mi2

Answers

Answer:

Hes already taken and Hes cracked at Fortnit my dude

Step-by-step explanation:

the answer is 1 3/7 btw

Answer:

1 3/7 I got an 80% a B on this test because of this app :)

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