An urn contains 5 red marbles 9 white and 7 blue marbles marbles.A child randomly selects three (without replacement) from the urn.Round to four decimal place.Find the probability all marbles are the same.

Answers

Answer 1

Answer:

0.0970

Step-by-step explanation:

Red marbles, R= 5

White, W = 9

Blue, B = 7

Total = (5 + 9 + 7) = 21

Selecting 3 marbles without replacement :

Probability that all marbles are the same

P(RRR) or P(BBB) or P(WWW)

(5/21 * 4/20 * 3/19) + (7/21 * 6/20 * 5/19) + (9/21 * 8/20 * 7/19)

0.0075187 + 0.0263157 + 0.0631578

= 0.0969922

= 0.0970


Related Questions

Solve 2x+7=16 pls help meee​

Answers

Answer:

5.5

Step-by-step explanation:

2x+7=16

   -7   -7

2x=11

2x/2=11/2

x=5.5

You subtract 7 on both sides, so it’ll be 16-7 which is 9. Then, your equation will be 2x=9. At this point, you’ll divide 2 on both sides. Your answer will be x=9/2.

Please help me on question 13.

Answers

Answer:

37°

Step-by-step explanation:

the rules of a bow theorem is the angles at the bottom are equal and the angles at the top are equal

The answer is 37° sorry if it’s wrong

What are the domain and range of the function defined by the set of ordered pairs below? {(3, -4), (-1, 4), (-2, 6), (1, 0)}

Answers

Answer:

C

Domain: {-2, -1, 1, 3}

Range: {-4, 0, 4, 6}

Step-by-step explanation:

The domain is the set containing all x-coordinates.

Domain: {-2, -1, 1, 3}

The range is the set containing all y-coordinates.

Range: {-4, 0, 4, 6}

Answer:

C

Domain: {-2, -1, 1, 3}

Range: {-4, 0, 4, 6}

The answer is C
---------------------------

Find the solution set of the inequality
8x−8≤−72.

Answers

Answer:

x≤-8

Step-by-step explanation:

When solving 8x-8≤-72, first add 8 to both sides of the inequality.

This leaves you with 8x≤-64.

Divide both sides by 8: 8x/8 and -64/8

This leaves you with x≤-8 as your solution.

-4 ( 6 - 2n ) = 30 + 8n

Please help me

Answers

n = no solution

-4 ( 6 - 2n ) = 30 + 8n
-24 + 8n = 30 + 8n
Subtract 8n from both sides
-24 = 30
This is invalid therefore no solution

Who made a mistake and what mistake did they make?

Answers

Answer:

Joseph

Step-by-step explanation:

Jeremy made a mistake in the first step with the radius. he used the number 4 as radius instead of 2. so that automatically makes Joseph right.

answer this for brainliest answer

Answers

A i know i just
Did this

Factor 8m^6 - 64n^12p^15. don't waste points and show steps and factors. please

Answers

Answer:

8(m⁶ - 8n¹²p¹⁵)

Step-by-step explanation:

Given:

8m⁶ - 64n¹²p¹⁵

The only part that we can factor out is in the coefficients.  Because both terms use different variables, they can not be factored.  However, both terms are divisible by eight, so we can say it equals:

8(m⁶ - 8n¹²p¹⁵)

And that is all the factoring that can be done.

Annie wants to eat an entire donut. However, since she only two-years-old, the mother says she can
only have a third of the donut. If the diameter of the donut is 4 inches, how long is the outside edge of
the piece that Annie gets to eat? Round your answer to the nearest hundredth of an inch.

Answers

Answer:

4.19 inches

Step-by-step explanation:

Your goal is to find the circumference of the donut and then divide that by 3 to get 1/3 of the outer edge of the donut.

Circumference is 2[tex]\pi[/tex]r

The diameter (double the radius) is 4, so radius (r) is 2

2 * pi * 2 = 4 pi = 12.57 (round to hundredth)

12.57/3 = 4.19

keep in mind that dividing by 3 is the same as multiplying by 1/3

factor completely 3x2 + y

Answers

Answer:3 x 2 +y is 6

Step-by-step explanation:

I hope i helps if wrong sorry

Answer:

xy(3x + 1)

Step-by-step explanation:

I took the test

Joanie is 11 5 6 years old. Nancy is 1 1 3 years older than Joanie and Jane is 1 1 4 years older than Nancy. How old is Jane?

Answers

Answer:

jane is 1383 years old!!

Step-by-step explanation:

how do you turn fractions into decimals?​

Answers

Answer:

You would need to divide the numerator by the denominator in order to convert a fraction into a decimal

Step-by-step explanation:

Answer:

You divide the numerator by the denominator.

Step-by-step explanation:

For example, you covert the fraction [tex]\frac{1}{2}[/tex] into a decimal.

You just do: 1÷2=0.5, and there you have it, the decimal!

Have a nice day!

What is y, when x = 7. y = 3x + 10
PLEAS HELP I NEED IT RN

Answers

Answer: y = 31

Step-by-step explanation:

y = 3x + 10

y = 3(7) + 10               Plug in the 7 for x, because it shows x = 7 in the question.

y = 21 + 10

y = 31

7(x-2)<2x+3 as a improper fraction

Answers

Answer:

-23/3

Step-by-step explanation:

sorry if i am wrong

-23/3 :)))))) i hope u have a nice day

please help

ABC = ADC . Find y.​

Answers

Answer:

y is 7

Step-by-step explanation:

Loki wrote 1/6 of a page in 1/12 of a minute. How much time does it take him to write a full page?

Answers

2 minutes.

EXPLANATION:

To find the answer, we can find an equivalent fraction for each.

1/6 x 6 = 6/6
1/12 x 6 = 6/12

So every 1 minute Loki writes half a page.

Since 2 halves = 1.

2 minutes for 1 page.

Hope this helps!

MARKING BRAINLIST IF HELPFUL Write the equation of a line that passes through (3, 3) and perpendicular to a line that contains (-1, 1) and (7, 5).

Answers

Answer:

y=mx+b

find the slope of the second line then opposite it and you will get the slope of the first line, then you would put it anywhere on the second line and you will then get the y intercept and then you can fill in the equation

m=slope

b=y intercept

Tamara finds the sum of two number cubes rolled at the same time. The chart below shows all possible sums from the 36 possible combinations when rolling two number cubes. How many times should Tamara expect the sum of the two cubes be equal to 6 if she rolls the two number cubes 252 times?​

Answers

7 times.
your welcome

Answer:

42 OR 35

Step-by-step explanation:

the product of 3 and a number minus 10 is the same as
four times the number

Answers

Answer:

n = -10

Step-by-step explanation:

3n - 10 = 4n

-10 = n

Answer:

n = -10

Step-by-step explanation:

3n - 10 = 4n

-10 = n

Help me with this!! Will mark Brainliest ❤️

Answers

Answer:

Yes

Step-by-step explanation:

You are running a 10-kilometer race. At 8:00 A.M., you start the race.
At 8:30 A.M., you are 4 kilometers from the finish line. Write a linear
model that gives the distance d (in kilometers) from the starting line in
terms of the time t (in minutes). Let t represent the number of minutes
since 8:00 A.M.

Answers

Answer:

It take 20 minutes to run 4 kilometres

Step-by-step explanation:

As we run 6 kilometres in 30 minutes

Equation is 4×30÷6=20

Then each 1kilometre take 5 minutes

sin x =
cos x =
tan x =

Answers

Sin x = b/c
Cos x = a/c
Tan x = b/a

−9x−6y=15
9x−10y=145

y=
x=

Answers

Answer:

Step-by-step explanation:

Adding the two equations together gives you

9x-10y-9x-6y=145+15

-16y=160

y=-10, using this value in 9x-10y=145 gives you

9x-10(-10)=145

9x+100=145

9x=45

x=5

So y=-10 and x=5


A birch tree is 9 feet tall and grows at a rate of 2 feet per year. The table shows the height h (in feet) of a willow tree after x years.

Answers

Answer:

No linear relationship between x and y

Step-by-step explanation:

change in y is constant, change in x is increasing not a constant. constant means it remains the same doesnt change.

Raj started with angle B and constructed angle D.

Answers

Answer:

you forgot to put the attachment

Step-by-step explanation:

Where’s the Attachment

Which statement about the value of a credit report to lenders and borrowers is NOT true?

aCredit reports tell borrowers their likelihood of getting a loan, and their likelihood of getting a good rate.

bCredit reports always tell borrowers and lenders whether a borrower will be able to repay a loan.

cCredit reports tell lenders the risk that a borrower will not repay a loan.

dCredit reports tell borrowers and lenders about the borrower’s past performance on loans.

Answers

Answer:

Credit reports always tell borrowers and lenders whether a borrower will be able to repay a loan.

Step-by-step explanation:

The answer is right

Math Problem! Please help

Answers

Answer:

27 cm

Step-by-step explanation:

Multply each side. 4cm×4cm, 2cm×2cm and 3cm×3cm. After that, add them together.

Answer:

is

this the right picture??

A father is eight times as old as his son . In 10 years , he will be three times as old as his son . The age of son is

Answers

Answer:

The son is 4years old

Step-by-step explanation:

Let the son's age=x

the father's age=8x

IN 10YEARS,

Son's age=x+10

father's age=8x+10

Equate them

8x+10=3(x+10)

8x+10=3x+30

5x=20

x=4

The radius of a sphere is 7 cm. What is the sphere's volume? Round to the nearest tenth, and use 3.14 for π.

Answers

Answer:

1,436.8

Step-by-step explanation:

Please help me. I'm not trying to guilt-trip or anything but I suck at school and my questions haven't been answered or people just forget that there are multiple photos. I hope someone will help me. I only have 10 points :l I know the links are scams

Answers

Answer:

A= 9 , B= 4 , C= 18

Step-by-step explanation:

if u need a in depth explanation text me in the comments :)

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