A bag contains 3 red marbles, 7 blue marbles and 5 green marbles. If three marbles are drawn out of the bag, what is the exact probability that all three marbles drawn will be green?

Answers

Answer 1

Probability helps us to know the chances of an event occurring. The exact probability that all three marbles are drawn will be green is 0.02198.

What is Probability?

Probability helps us to know the chances of an event occurring.

[tex]\rm Probability=\dfrac{Desired\ Outcomes}{Total\ Number\ of\ outcomes\ possible}[/tex]

Given the bag contains  3 red marbles, 7 blue marbles and 5 green marbles, therefore, a total of 15 marbles. Therefore, the exact probability that all three marbles are drawn will be green can be written as,

[tex]\rm Probability = \dfrac{5}{15} \times \dfrac{4}{14} \times \dfrac{3}{13} = \dfrac{60}{2730} = 0.02198[/tex]

Hence, the exact probability that all three marbles are drawn will be green is 0.02198.

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Related Questions

( 3 × 10^ 6 ) + ( 3 × 10 ^6 )

Answers

Answer:

6000000

Step-by-step explanation:

3(106)+3(106)

=(3)(1000000)+3(106)

=3000000+3(106)

=3000000+(3)(1000000)

=3000000+3000000

=6000000

Which of the following has the greatest value?

Answers

Answer:  i believe it is D

Step-by-step explanation:

A = 4.4

B = 4.28

C = -4.5

D = 4.6

I WILL GIVE 20 POINTS TO THOSE WHO ANSWER THIS QUESTION RIGHT NOOOO SCAMS AND EXPLAIN WHY THAT IS THE ANSWER. Find the values of the variables for the parallelogram

m<1=5y-15


X=____,y=____,z=____

Answers

Answer:

x=5,z=4.5

Step-by-step explanation:

Given the angles are right angle i.e. 90°

90-9x = 90 - 10z

9x = 10z =45°(because diagonals bisects angles)

x=45/9

=5

z=45/10

=4.5

Oi beinggreat78, check this out

Answers

Answer:

[tex]\sf C = 37.7~in.[/tex]

_________

[tex]\sf Steps[/tex]

[tex]\sf Given~diameter=12[/tex][tex]\sf Use~diameter-to-circumference~formula[/tex]

         [tex]\sf Formula:[/tex]  [tex]\pi d = \pi * diameter[/tex]

_________

[tex]\sf Solve[/tex]

[tex]\pi * d(12) = 37.7~in.[/tex]

The pressure of a gas varies inversely with the volume (P = k/v). If the pressure is 150 kPa, and the volume 4 ML, what would the pressure be if the volume of the gas is 3 ML? If needed, round your answer to 2 decimal places.

Answers

Answer:

This is an Application of Boyle's Law.

Step-by-step explanation:

The relationship between the Pressure and Volume have been made available and is given as ;

P =k/v

Simply making k(constant) subject...

K =PV (With this, we can conclude that :

PV = P₂V₂

150 x 4 = P₂ x 3

P₂ = 150 x 4/(3)

P =200kPa

Now, This is all math.

But what really happened?

Pay attention.

The relationship between Pressure and Volume according to Robert Boyle in his Law, as stated in the question is P = k/v

This is an inverse relationship.

simply interpreted, It reads " When pressure increases by a certain factor, Volume decreases by that factor". This is the concept behind inverse relationships.

So from the question, Volume decreased from 4ML to 3L.

Initial Pressure was 150kPa.

According to Boyle, Pressure has to increase by 4/3

Therefore, New pressure is undoubtedly 150 x 4/3 = 200kPa

Have a splendid day.

Nevaeh pays a total of $24
for two sets of paint brushes. Each set costs the same amount of money and contains three paint brushes.

What is the cost per paint brush?

$12
12 dollars

$8
8 dollars

$4
4 dollars

$3

Answers

The cost per paint brush is $4 if the Nevaeh pays a total of $24

for two sets of paint brushes, and each set costs the same amount of money and contains three paint brushes.

What is a fraction?

Fraction number consists of two parts, one is the top of the fraction number which is called the numerator and the second is the bottom of the fraction number which is called the denominator.

We have:

Nevaeh pays a total of $24 for two sets of paint brushes. Each set costs the same amount of money and contains three paint brushes.

The cost for each set = 24/2 = $12

In each sets of paint brushes there are total of 3 brushes which cost $12

So, each brush cost = 12/3 = $4

Thus, the cost per paint brush is $4 if the Nevaeh pays a total of $24

for two sets of paint brushes, and each set costs the same amount of money and contains three paint brushes.

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Joshua borrowed $2,200 for one year and paid $132 in interest. The bank charged him a service charge of $21. What is the finance charge on this loan?

Answers

Joshua borrowed $2,200 for one year and paid $132 in interest. The bank charged him a service charge of $21. The finance charge on this loan is 6.9%.

What is APR?

Suppose there is an initial amount as P.

The interest, or say charge on it is applied annually as 'C' amount.

Taking how much percent of P is C, we get:

[tex]APR = \dfrac{C}{P} \times 100[/tex]

Given;

Principal =$2,200

interest = $132

Service charge = $21.

To find finance charge we use

Finance charge (FC) = interest + service charge(SC)

= $132 + $21

= $153

Therefore

APR = Finance charge / Principal

= $153 / $2200

= 0.069 or 6.9%

Therefore, The finance charge on this loan is 6.9%.

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Find the exact area of the shaded please helppp ILL GIVE BRAINLIESTTTTTT

Answers

Answer:

The exact area is [tex]5\pi[/tex]

Step-by-step explanation:

The area of the major circle is subtracted from the area of the minor circle (blank)

Major circle

[tex]r=\frac{6}{2} =3[/tex]

[tex]A=\pi r^{2} =\pi (3)^{2} =\pi (9)=9\pi[/tex]

Minor circle:

[tex]r=\frac{4}{2} =2[/tex]

[tex]A=\pi r^{2} =\pi (2)^{2} =\pi (4)=4\pi[/tex]

The shaded area:

[tex]9\pi -4\pi =5\pi[/tex]

Hope this helps

Please help
Thank you

Answers

1. Yes
2. A-2x
Hope this helps also I did this question and got it correct

PLEASEEEE HELPPPPPP!!!!!!

Answers

Answer:

This graph represent a odd function since it has an odd number of degrees  while the others have like 4

f(-x) = -f(x)

help me please i and this asap​

Answers

Answer: Select 2 because its 2 times the volume of cone

Step-by-step explanation:

Find the product of the sum of 64 and 17 and the difference of 56 and 39.

Answers

Step-by-step explanation:

Sum of 64 and 17 = 44 + 17 = 81

Differences of 56 and 39 = 56 - 59 = 17

The product of the sum of 64 and 17 and the difference of 56 and 39 = 81 × 17 = 1377...

hope it helped !!!

A training field is formed by joining a rectangle and two semicircles, as shown below. The rectangle is 100m long and 62m wide. Find the area of the training field. Use the value 3.14 for π, and do not round your answer. Be sure to include the correct unit in your answer.

Answers

The area of a 2D form is the amount of space within its perimeter.  The area of the rectangular field is 9,219.07 m².

What is an area?

The area of a 2D form is the amount of space within its perimeter. It is measured in square units such as cm2, m2, and so on. To find the area of a square formula or another quadrilateral, multiply its length by its width.

At the end of the rectangular field, two semi-circles are used whose diameter is 62 meters, therefore, the radius of the circle is 31 meters(half of the diameter). The area of the semicircle can be written as,

[tex]\text{Area of 2 semicircles} = 2 \times \dfrac{\pi r^2}{2} = \pi r^2[/tex]

Area of 2 semicircles =  π(r²) =π × (31²) = 3,019.07 m²

The area of the rectangle is the product of its length and its breadth. Therefore, the area of the rectangle will be,

Area of the rectangle = 100 × 62 =6,200 m²

Now, the area of the rectangular field is the sum of the area of the 2 semi-circles and the rectangle.

Area of the rectangular field= Area of the rectangle + Area of the Semi-circle

Area of the figure= 3,019.07 + 6200 = 9,219.07 m²

Hence, the area of the rectangular field is 9,219.07 m².

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Which steps should be used to graph the equation below? y - 4 = 1/3 * (x + 2)

Answers

Answer:

Step-by-step explanation:

y - 12/3 = 1/3x + 2/3

y = 1/3x + 14/3

s a right triangle. If RQ = 8, what is PQ

Answers

Answer:

PQ = 4

Step-by-step explanation:

[tex]tan(30)=\frac{RQ}{8}\\RQ=8tan(30)\\RQ=\frac{8}{3}\\RQ=\frac{8}{3}/3\\HYPOTENUSE=8\\PQ = 4\\[/tex]

help pleaseeeeeeeeeeeee

Answers

When you are multiplying the roots you will not add or multiply the roots, meaning that the cubic root will stay the same. You will only multiply the numbers below the roots. Meaning that you will multiply -3 by -5 and get 15. So your answer will be the third one. Cubic root of 15

X
GRADE 07 MATHEMATICS I SECTION 3 / 1 OF 11
A distance of 2 inches on a map represents an actual distance of 3 miles. The map shows a scale
drawing of a rectangular plot of land. The width of the plot of land on the map is 6 inches. What is the
actual width, in miles, of the plot of land?
Enter your answer in the space provided.

Answers

Answer:

9

Step-by-step explanation:

6 divided by 2 equals 3 then you multiply 3 by 3 which equals 9.

Hope this helps!!!!!!!!!!

Be safe!!!!!!!

Answer:

9 miles

Step-by-step explanation:

Given scale:  2 in = 3 miles

⇒ 1 in = 1.5 miles

If the width of the plot of land is 6 inches, then to calculate the actual width multiply 6 by 1.5:

actual width = 6 × 1.5 = 9 miles

What is the length of the missing side of this triangle?
A.2
B. 8
C. V2
D. 514​

Answers

Check the picture below.

Pls, look at the picture for the question.

Answers

Answer:

the answer of the question is A

Volume is 48.2304 solve radius and height Is 6.4 m

Answers

If the volume and height of the cylinder are 48.2304 cubic m and 6.4. Then the radius of the cylinder will be 1.55 m.

What is a cylinder?

A cylinder is a closed solid that has two parallel circular bases connected by a curved surface.

The volume of the cylinder is 48.2304 cubic m.

And the height of the cylinder is 6.4 m.

Then the radius of the cylinder will be

The volume of the cylinder is given as

Volume = πr²h

48.2304 = π × r² × 6.4

          r² = 2.3988

           r = 1.5488

           r ≅ 1.55 m

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need help STAT 100 POINTS

Answers

Answer:

it would be 59.5

What is the slope of the line that passes through the points (0, -10)and (−4,−11)? Write your answer in simplest form

Answers

1/4
-11- - 10/-4-0= -1/-4=1/4

17, 18, 22, 31, 47, ?

Answers

The next number would be 63

Answer:

72

Step-by-step explanation:

17+1=18

18+4=22

22+9=31

31+16=47

1
VOLUME OF RECTANGULAR PRISMS
4 cm
1
7.5 cm
18 cm

Answers

Answer: 540 cm³

Step-by-step explanation:

    The volume of a rectangular prism can be found with:

V = L * W * H

-> L is the length

-> W is the width

-> H is the height

V = L * W * H

V = 18 cm * 7.5 cm * 4 cm

V = 540 cm³

         The volume is 540 cm³.

What is the y-intercept of f (x) = 3.4’x?

Answers

Answer:

3

Step-by-step explanation:

Y intercept when x = 0

F(0) = 3 * 4^(0) = 3 * 1 = 3

Determine whether each situation calls for a survey, an experiment, or an observational study. Explain your reasoning.
1. A research group wants to determine if playing music in a patient waiting room reduces stress levels.
2. A nutrition research group wants to determine whether ninth-grade students who reported having eating breakfast
every school morning had higher standardized test scores than who did not report having eaten breakfast every school
morning.
3. A restaurant plans to ask 100 randomly selected customers to determine which menu item is most popular.

Answers

1. Experiment; a sample of patients will be tested which means the members of the sample will be affected by the study (playing music).
2. Observational study; the scores of the participants are observed and compared without them being affected by the study.
3.Survey; the data will be given from opinions by members of the sample population.

another oneeeeeeeeeeeeeee

Answers

Answer: C, 2 x 2 x 2 x 2 x 2 x 3

Step-by-step explanation: Hope this helps!

A poll is taken at four different grocery stores to determine how far customers drive to shop at their store. The following information was gathered at the four stores. Customers That Drive < 5 miles Store W 52 of 100 Store X 68 of 75 Store Y 59 of 120 Store Z 28 of 50 If one customer is selected at random from each store, at which store would selecting a customer that drives less than 5 miles be a likely event?

Answers

Due to the higher proportion of customers driving less than 5 miles, it would be a likely event at store X.

What is a proportion?

A proportion is a fraction of a total amount, and the measures are related using a rule of three.

For each store, the proportion of customers driving less than 5 miles is given by:

Store W: 52/100 = 0.52.Store X: 68/75 = 0.9068.Store Y: 59/120 = 0.4917.Store Z: 28/50 = 0.56.

Hence, due to the higher proportion of customers driving less than 5 miles, it would be a likely event at store X.

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Help!, the questions are in the picture

Answers

21 cm
31

Those are the answers, good luck!

Mark brainlist

Anyone know the answer to this?

Answers

A^+B^2 =C^2
6^2 + 1^2 = 37
Square root of 37= 6.08
Rounded to 6.1
Answer 6.1
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