Có 2 chuông gà: chuồng 1 có 5 trống 10 mái ,chuồng 2 có 6 trống 14 mái. Có 1 con ở chuồng 2 nhảy sang chuồng 1 . từ chuồng 1 bắt ngẫu nhiên ra 2 con. Tính xác suất bắt được
a . 2 con trống

Answers

Answer 1
I need English to answer

Related Questions

help me please (I had to write something to ask this question)​

Answers

Answer:

-5

Step-by-step explanation:

I think it would be -5 because if Celia had -3, that would take away from Janine, so then it would leave the points at 5. But, it says the team had 0 points all together, so wouldn't it be -5?

Convert the units of measure

Answers

Answer:

22.5

Step-by-step explanation:

24 hr in a day

so

540 : 24 = 22.5 or 22 1/2

Patrick ate 540 apples in 9 hours. at that rate, how many apples could he eat in 4 minutes?

Answers

Answer:

He could eat 4 apples in 4 minutes

Step-by-step explanation:

If he eats 1 apple per minute (which I dont know how he does) then in 4 minutes he will have eaten 4 apples.

Customer account “numbers” for a certain company consists of 2 letters followed by 2 single-digit numbers. How many different account numbers are possible if repetition of letters and digits are allowed?

Answers

Answer:

67600

Step-by-step explanation:

Let the format be:

LLDD- where L stands for letter and D- digit

For each L we have 26 (English alphabet) and for each D we have 10 options.

Number of possible accounts:

26*26*10*10 = 67600

Helppp I’m in class and need answers

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Answer:

Need answers for what? I would LOVE to help you hun but I cant help because there is nothing to answer.

Step-by-step explanation:

Facts about a linear relationship

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Answer:

A linear relationship (or linear association) is a statistical term used to describe a straight-line relationship between two variables. Linear relationships can be expressed either in a graphical format or as a mathematical equation of the form y = mx + b

Step-by-step explanation:

Usian bolt can run 100meters in 9.58 seconds . my car can drive 100kilometers an hour. which is faster, is it faster to travel 100meters in 9.58 seconds or 100 kilometers an hour

Answers

Answer:

Your car is faster of course

Step-by-step explanation:

100 km would be 100000 meters. Then you would need to know that if Usain bolt ran 100 meters every 9.54 sec then in 100000 meters he would have ran 9540 seconds which is also known has 159 minutes, which is more than 1 hour so your car is faster.

Please solve this. I need help on it​

Answers

Answer:

look at the photo............

9514 1404 393

Answer:

  ∠PTQ = 40°

  ∠PTR = 140°

Step-by-step explanation:

The two marked angles are "vertical" angles, so are congruent.

  ∠PTQ = ∠STR

  (x +28)° = (2x +16)°

  12 = x . . . . . . . . . . . . . . . divide by °, subtract x+16

Then the measure of angle PTQ is ...

  ∠PTQ = (x +28)° = (12 +28)° = 40°

That and angle PTR form a linear pair, so are supplementary.

  ∠PTR = 180° -∠PTQ = 180° -40° = 140°

IS THIS CORRECT? CLASS 6 MATHS!!!!!​

Answers

Answer:

63/5

Step-by-step explanation:

The reciprocal of a fraction is basically just the flipped fraction. In this case, you would just flip the numerator with the denominator, giving you 63/5.

100 Points. Help solve.

Answers

Answer:

Step-by-step explanation:

[tex]\frac{8}{x} =cos 60\\\frac{8}{x} =\frac{1}{2} \\x=8 \times2=16\\\frac{y}{x} =sin60\\\frac{y}{16} =\frac{1}{\sqrt{2}} \\y=\frac{16}{\sqrt{2}} \\y=\frac{16}{\sqrt{2}} \times\frac{\sqrt{2}}{\sqrt{2}} \\y=\frac{16\sqrt{2}}{2} =8\sqrt{2}[/tex]

Answer:

the second option/x = 4, y = 8√3

Step-by-step explanation:

out of the tree options, the second one makes sense

Like nobody is helpping me i been postting the same questions alot of time what are you doing yall want to to answer what yall want to answer i post the easy question that yall can and it ju0st like. who ever want to help there are questions on my page they are easy im telling you! 50 pts for who ever do and brainliest

Answers

Answer:

Sure if they are not too hard

Step-by-step explanation:

Graph the line with slope 2/3 passing through the point (-3,-3)

Answers

Step-by-step explanation:

y=mx+b

y=(2/3)x+b

-3=(2/3)(-3)+b

-3=-2+b

-1=b

y=(2/3)x-1 . y-intercept at (0,-1)  

0=(2/3)x-1

1=(2/3)x

3=2x

3/2=x . x-intercept at (1.5,0)

In a distribution with a mean of 100 and a standard deviation of 15, the probability that a score
will be 115 or higher is _____ Please show all your work.

Answers

Using the Zscore principle, the probability of obtaining a score which will be 115 or higher is 0.15866

Given the Parameters :

Mean, μ = 100Standard deviation, σ = 15 Score, X ≥ 115

Zscore = (X - μ) ÷ σ

Zscore = (115 - 100) ÷ 15

Zscore = 1

Using a normal distribution probability ;

P(Z ≥ 1) = 1 - P(Z ≤ 1)

P(Z ≥ 1) = 1 - 0.84134

P(Z ≥ 1) = 0.15866

Therefore, the probability is 0.15866

Learn more :https://brainly.com/question/8165716

2 (b) The line, L4, passes through the point (0,3)and is parallel to the line y - x + 3 = 0, find the equation of L4 -​

Answers

Answer:

y = x + 3

Step-by-step explanation:

→ Rewrite y - x + 3 = 0 in y = mx + c format

y = x - 3

→ Find the gradient of L4

1

→ Rewrite into y = mx + c format

y = x + c

→ Substitute in ( 0 , 3 )

3 = 0 + c

→ Find c

c = 3

→ Rewrite into y = mx + c

y = x + 3

3r-(r+0.47)=3.13 solve for r

Answers

Answer:

r=1.8

Step-by-step explanation:

Answer:

2.66 = r

Step-by-step explanation:

3.13 - 0.47 = 2.66 which would equal r

Write a function rule that represents b less than 8 is a.

A. b-8=a
B. 8-b=a
C. a=b-8
D. a=b+8

Answers

Answer:

Step-by-step explanation: b-8=a

Plz help me

Determine whether the following sets form subspaces of R^3:

(a) {(x1,x2,x3)^T |x1+x3=1}

(b) {(x1,x2,x3)^T |x1=x2=x3}

Answers

Answer:

a.

Step-by-step explanation:

hope it's helpful

brainliest me pls

A water tank is a cube of side 2m the depth of the water in it is 60cm. What is the volume of the water in the tank?

Answers

Answer:

8 METERS CUBES I THINK

Step-by-step explanation:

VOLUME IS LENGTH TIMES WIDTH TIMES HEIGHT

2 METERS TIMES 2 METERS TIMES 2 METERS IS 8 METERS

What is P55 ? 5 25 1 120

Answers

what are you talking about?

Answer:

120

Step-by-step explanation:

I took the test

NO LINKS!!! Part 1: y = x^3

Shape:
Domain:
Range:
Locater point:​

Answers

Answer:

Shape: Not sure what to put

Domain: ( -oo, oo )

Range: ( -oo, oo )

Locater point: ( 0, 0 )

Step-by-step explanation:

Shape - You have the shape on the graph

Domain and Range - Both go on forever since there is no hole/interruption

Locater Point: I would say origin because it is the closest thing to a vertex, which is an example of a locater point.

Hopefully this helps!

Brainliest please?

If you continue operating the tractor at its current level, how man
fertilize in the next hour?
A. 5.96 acres
B. 11.92 acres
C. 12.92 acres
D. 19.87 acres

Answers

Answer:

D. 19.87 acres

Step-by-step explanation:

do not put heart if wrong and put heart if correct

Let f(t)=4-3t^2. Evaluate f(t+1).

Answers

Answer:

f=4-3t^2/t+1

Step-by-step explanation:

ive been stuck for so long. pls help

Answers

Answer:

B

Step-by-step explanation:

Might be C, but I hope it helps

Sandeep is making fruit dip for a party. His recipe calls for 1/2 of a teaspoon of cinnamon and 3/4 of a cup of yogurt. Using this ratio, how much cinnamon does Sandeep need if he uses 3 cups of yogurt?

Answers

Answer:

That sounds delicious

Step-by-step explanation:

0.5:0.75  =   x:3

2 teaspoons of cinnamon needed

Plz help I need help

Answers

Answer:

x = 6

Step-by-step explanation:

This can be written as a ratio

7 : 2

21 : x

If you times one side by 3, you have to multiply the other side by three too:

2 × 3 = 6

∴ x = 6 when y = 21

C. Direction : Arrange the events in the menstrual cycle. Write the number that corresponds to
the order of the event in the cycle.


________1. Menstrual flow


________2. Release of the egg


________3. Shedding of the
endometrium


__________4. Thickening of the endometrium

Answers

Answer:

4

3

2

1

Step-by-step explanation:

so thickening of the endometrium

then shedding of the endometrium

release of the egg

then menstrual flow

4,3,2,1 is the correct order of events

house is between his school and the library, witch are one mile apart on the same street. A mile is 5280 feet. After school Nick walks 3195 feet to his house. How many more feet does he need to walk to get to the library? Explain

Answers

Answer:

2085 feet

Step-by-step explanation:

If the library and school are one mile apart and his house is in the middle then after he walks to his house he only has 2085 feet left to walk.

He need to walk 2085 more miles to get to the library

Use finite approximation to estimate the area under the graph of f(x) = 5^2 and above the graph of f(x) = 0 from X(o) = 0 to x(n )= 14 using b) a lower sum with two rectangles of equal width. in) a lower sum with four rectangles of equal width. in) an upper sum with two rectangles of equal width. iv) an upper sum with four rectangles of equal width.​

Answers

Finite approximation method of estimating the area under the curve of the

given function makes use of rectangular approximation of the area.

The correct responses are;

i) The estimated area using a lower sum with two rectangles of equal width is 1,715 square units.

ii) The estimated area using a lower sum with four rectangles of equal width is 3,001.25 square units.

iii) The estimated area using an upper sum with two rectangles of equal width is 8,575 square units.

iv) The estimated area using a upper sum with four rectangles of equal width is 6,431.25 square units.

Reasons:

The given function is f(x) = 5·x²

The given domain is x₀ to x₁₄

i) Estimate using lower sum with two rectangles of equal width;

[tex]Let \ \Delta x = \dfrac{14}{2} = 7 \ we \ get;[/tex]

f(0) = 0

f(7) = 5 × 7² = 245

A = 0 × 7 + 245 × 7 = 1,715

The estimated area using a lower sum with two rectangles of equal width

is 1,715 square units.

ii) Estimate using lower sum with four rectangles of equal width;

[tex]Let \ \Delta x = \dfrac{14}{4} = 3.5 \ we \ get;[/tex]

f(0) = 0

f(3.5) = 5 × 3.5² = 61.25

f(7) = 5 × 7² = 245

f(10.5) = 5 × 10.5² = 551.25

A = 0 × 3.5 + 61.25 × 3.5 + 245 × 3.5 + 551.25 × 3.5 = 3,001.25

The estimated area using a lower sum with four rectangles of equal width is 3,001.25 square units.

iii) Estimate using an upper sum with two rectangles of equal width;

[tex]Let \ \Delta x = \dfrac{14}{2} = 7 \ we \ get;[/tex]

f(7) = 5 × 7² = 245

f(14) = 5 × 14² = 980

A = 245 × 7 + 980 × 7 = 8575

The estimated area using an upper sum with two rectangles of equal width

is 8,575 square units.

iv) Estimate using an upper sum with four rectangles of equal width;

[tex]Let \ \Delta x = \dfrac{14}{4} = 3.5 \ we \ get;[/tex]

f(3.5) = 5 × 3.5² = 61.25

f(7) = 5 × 7² = 245

f(10.5) = 5 × 10.5² = 551.25

f(14) = 5 × 14² = 980

A = 61.25 × 3.5 + 245 × 3.5 + 551.25 × 3.5 + 980 × 3.5 = 6,431.25

The estimated area using a upper sum with four rectangles of equal width

is 6,431.25 square units.

Learn more here:

https://brainly.com/question/2264277

PLEASE HELP!!!!! A satellite telescope has a parabolic dish. Satellite signals are collected at the focal point (focus) of the
parabola. The distance from the vertex of the parabolic dish to the focus is 40 feet. The vertex of the dish is
located at a point 50 feet above the ground and 100 feet to the east of a computer that reads and records
data from the telescope. The diameter of the dish is 160 feet.

Answers

The dish illustrates operations on a parabola.

The depth of the parabolish dish is 160 feet.

The bowl is said to be a parabola.

So, we have:

[tex]\mathbf{(x -h)^2 = 4p(y - k)}[/tex]

Where:

[tex]\mathbf{Focus: p = 40}[/tex]

[tex]\mathbf{Vertex:(h,k) = (0,0)}[/tex]

From the question, the diameter is 160 feet.

So, the radius (r) is:

[tex]\mathbf{r = \frac{160}{2} = 80}[/tex]

So, the coordinate of the depth of the parabola would be:

[tex]\mathbf{(x,y) = (60 + 100,y)}[/tex]

[tex]\mathbf{(x,y) = (160,y)}[/tex]

Substitute these values in [tex]\mathbf{(x -h)^2 = 4p(y - k)}[/tex]

So, we have:

[tex]\mathbf{(160 - 0)^2 = 4 \times 40 \times (y -0)}[/tex]

[tex]\mathbf{160^2 = 160y}[/tex]

Divide both sides by 160

[tex]\mathbf{160 = y}[/tex]

Rewrite as:

[tex]\mathbf{y = 160 }[/tex]

Hence, the depth of the parabolish dish is 160 feet.

Read more about parabolas at:

https://brainly.com/question/4074088

how many 3/4s are in 1 2/4

Answers

Answer:

I think there is 6.

Step-by-step explanation:

Im not 100% sure tho :{

Hope this helps :}

Pls make brainliest :P

And have an amazing day <3

4 1/2 = (4x2+1)/2=9/2

9/2 divided by 3/4
9/2 X 4/3
9/1 X 2/3=18/3 = 6
answer is 6
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