You have a bag that contains 7 red marbles and 5 blue marbles. You randomly choose one of the marbles. Without replacing the first marble, you choose a second marble. Find the probability of these dependent events. Simplify as needed. Choosing a red marble and then a blue marble​

Answers

Answer 1

Answer:

Step-by-step explanation:

12 marbles in total. The possibility of pulling out a red marble is going to be 7/12. Since you would then take the marble out, you'll have 11 marbles left. After that, it'll be 5/11.


Related Questions

A fisherman is standing on the left bank of a stream that is 115 ft wide. The angle of depression from the edge where he stands to the bottom of the stream on the opposite edge is 52˚. How deep is the river at this point? (round to nearest foot).

Answers

Answer:

Step-by-step explanation:

A fisherman is standing on the left bank of a stream that is 115 ft wide. The angle of depression from the edge where he stands to the bottom of the stream on the opposite edge is 52˚. How deep is the river at this point? (round to nearest foot).

A sphere has a surface area of 803.84 cm^2. What is the volume?

Answers

Answer:

V≈2143.03cm³

Step-by-step explanation:

The volume of the sphere is 2143.57 cm³.

What is the surface area of the sphere?

A = 4 × π × r², where 'r' is the radius of the sphere.

What is the volume of the sphere?

V = (4/3) × π × r³

For given example,

a surface area of the sphere is 803.84 cm^2.

⇒ A = 803.84 cm²

Using the formula of the surface area of the sphere,

⇒ 4πr² = 803.84

⇒ r² = 64

⇒ r = 8 cm

Using the formula of the volume of the sphere,

⇒ V = (4/3) × π × r³

⇒ V = (4/3) × 3.14 × 8³

⇒ V = 2143.57 cm³

Therefore, the volume of the sphere is 2143.57 cm³.

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Which expressions are equivalent to the expression 18b+24? Select all that apply. *

A.6(3b+4)
B.6(3b+8)
C.2(96-12)
D.3(6b+8)
E.3(6b+4)
F.2(9b+12)

Answers

Answer:

A, D, F

Step-by-step explanation:

6(3b+4)=18b+24

6(3b+8)=18b+48

2(96-12)=192-24

3(6b+8)=18b+24

3(6b+4)=18b+12

2(9b+12)=18b+24

HELP ASAP

Two birds sit at the top of two different trees. The distance between the first bird and a birdwatcher on the ground is 32 feet. The distance between the birdwatcher and the second bird is 45 feet.

A triangle is created from point Bird Watcher, point First Bird, and point Second Bird. Angle First Bird is a right angle, and angle Second Bird measures x degrees.

What is the angle measure, or angle of depression, between this bird and the birdwatcher? Round your answer to the nearest tenth.

35.4°
44.7°
45.3°
54.6°

Answers

Answer:

The correct angle is 45.3°

Step-by-step explanation:

Since the opposite side of the angle is 32 feet, and the hypotenuse of the right triangle is 45 feet, you would know that the sine of x° is equivalent to [tex]\frac{32}{45}[/tex]. To find the value of x, take the arcsin of both sides and you'll get that [tex]x = arcsin(\frac{32}{45})[/tex] ⇒ [tex]x[/tex] ≈ 45.3°.

45.3 I think good luck

Geometry help please. Complete the similarity statement, in the box below, of these two triangles.

Answers

Answer:

ΔIJK ≈ ΔXVW

Step-by-step explanation:

{67, 68, 68, 71, 73, 73, 73, 74, 74, 74, 74, 75, 75, 77, 78, 79, 79, 80, 80}
What is the median of the data?
68
71
74
75

Answers

the answer would be 74 i believe sorry if i am wrong

Answer:

74

Step-by-step explanation:

hajahabajsj abshahhahss

Work out the value of 22 - 2y when
y = 10

10 X 2 = 20

22-20= 2

Answer = 2

Answers

Answer:

2

Step-by-step explanation:

22 - 2y

= 22 - 2 ( 10 )

= 22 - 20

= 2

Question Progress
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37141 Marks
In a class of 32 students
the mean height of the 14 boys is 1.56 metres
the mean height of all 32 students is 1.515 metres.

Work out the mean height of the girls.

Answers

Girls are 4ft tall
Hi sir i just sent you an invite for a meeting at

Please answer correctly! I will mark you as Brainliest

Answers

Answer:

424.3m³

Step-by-step explanation:

I'm sorry, I don't have any proof because I used the go.ogle calculator, you're just gonna have to trust me on this one

Dante’s Pizza offers 6 different kinds of toppings: extra cheese, green olives, mushrooms, onions, peppers, and tomatoes.

A 2-topping pizza must have 2 different kinds of toppings on it. Make a list of all the different 2-topping pizzas you could order.

Answers

Answer:

extra cheese, green olives, mushrooms, onions, peppers, and tomatoes.

Step-by-step explanation:

The equation 3x – 2y = 18 is in slope intercept
form.
If the y variable was isolated, it would be in
1
form.
(Use all lowercase letters when writing the answers)

Answers

Given:

The equation is:

[tex]3x-2y=18[/tex]

To find:

The slope intercept form of the given equation.

Solution:

Slope intercept form of a line is:

[tex]y=mx+b[/tex]

Where, m is slope and b is y-intercept.

We have,

[tex]3x-2y=18[/tex]

It is not in the slope intercept form.

We need to isolate variable y to get the slope intercept form.

The given equation can be rewritten as:

[tex]-2y=-3x+18[/tex]

[tex]y=\dfrac{-3x+18}{-2}[/tex]

[tex]y=\dfrac{-3x}{-2}+\dfrac{18}{-2}[/tex]

[tex]y=\dfrac{3}{2}x-9[/tex]

Therefore, the slope intercept form of the given equation is [tex]y=\dfrac{3}{2}x-9[/tex].

BRAINLIEST plus 30 points IF NO LINKS!
PLZ HELP!

Answers

The answer is quite simple just multiply the three to the floor and you’re basically the whole answer is just to write the line

Answer:

3 is A 2 is 7 or around 32 and then 1 you gotta figure it out.

Step-by-step explanation:

This may not be correct but hopefully it is..

What is the perimeter, in units, of Rectangle WXYZ?

Answers

Answer:

I'm pretty sure it's 72, if not i'm sorry

y/8 = 5

what dose y = ?

Answers

Y= 40

Explained:

Solve for y
by simplifying both sides of the equation, then isolating the variable.

Can someone help me with this question?!!

Answers

The answer is that X equals 136

A new iPhone cost $829 and is on sale at a 25% discount. What is the sale price.

Answers

Answer:

621.75

Step-by-step explanation:

Hope this helps!!!

Check if (1,6) is the solution to the system shown below.

Answers

Answer:

NO it is not

Step-by-step explanation:

To check that, we will need to substitute the value of each of the coordinates in each of the equations

10x-y = -6

substitute 1 for x and 6 for y

we have this as;

10(1)-6 = 4

Outrightly, we can see that the given point is not a solution to the given system of equations

however, let us confirm for the second

We have this as;

-10(1) + 5(6)

= -10 + 30 = 20

so we can confirm that it does not work for any of the two and our answer is NO

What type of sequence is this:
a1 = 2
an = an-1+4

Answers

Answer:

a

Step-by-step explanation:

the common d/ce is four but not common ratio

The type of Sequence from [tex]a_1[/tex] = 2 and [tex]a_n[/tex] = [tex]a_{n-1}[/tex] + 4 is Arithmetic and recursive.

What is Arithmetic Sequence ?

In algebra, an arithmetic sequence is a set of numbers whose every two consecutive terms have the same difference.

An arithmetic sequence is one in which each phrase grows by adding or removing a certain constant, k. In a geometric sequence, each term rises by dividing by or multiplying by a certain constant k.

For example in the arithmetic sequence 3, 9, 15, 21, 27, the common difference is 6.

Given:

[tex]a_1[/tex] = 2

[tex]a_n[/tex] = [tex]a_{n-1}[/tex] + 4

We know that the Arithmetic Sequence is of two forms

Explicit Form : [tex]a_n[/tex] = a+ (n-1)d

and, Recursive form: [tex]a_n[/tex] = [tex]a_{n+1}[/tex] + d

Now, we have [tex]a_n[/tex] = [tex]a_{n-1}[/tex] + 4 which is in the form of Recursive.

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Skylar has a collection of 60 comic books. She gave away some of her comic books to her friend. After she gave them away, she had 48 still. What percent of her comic books did Skylar give away?

Answers

Answer:

the percent of her comic books did Skylar give away is 20%

Step-by-step explanation:

Given that

Skylar has a collection of 60 comic books

She gave away some of her books

And she left by 48 books

we need to find out the percent of the skylar give away books

= (60 - 48) ÷ 60

= 12 books ÷ 60 books

= 20%

Hence, the percent of her comic books did Skylar give away is 20%

Which equation represents the data in the table? d 1 2 3 4 5 t 9 13 17 21 25 t = 2d + 7 t = 5d + 3 t = 8d – 3 t = 4d + 5

Answers

Answer:

the last one is correct, the answer is t=4d+5

is x the slope , and what is y

Answers

Answer:

wheres the picture?

Step-by-step explanation:

Answer:

y intercept  

Step-by-step explanation:

the point where the graph crosses the y -axis

NO LINKS OR REPORT
Please help!

Find the area of the figure

Answers

Answer:

[tex]Aear=2450cm^{2}[/tex]

Step-by-step explanation:

The figure is made up of a rectangle, parallelogram, and square.

Area of the rectangle is 50(15)=750 cm²

Area of the parallelogram is 40 (40)=1600cm²

Area of the square is 10(10)=100 cm²

The total area is 750+1600+100= 2450 cm²

[tex]-------------------[/tex]

hope it helps..

have a great day!!!

Pls help. Due in 5 mintues pls.

Answers

It would be 18 days because you would have to look at the factors of 6 and 9. 6 times 3 is 18 and 9 times 2 is 18. Both have 18 in common in the first 2/3 numbers. Hopefully this makes sense.

Louise has a $75 gift card for her favorite toy store. She buys a model car kit for $22.79 and a doll for $19.95. What is the remaining balance on Louise's gift card?

Answers

Answer:

Louise has a remaining balance of $32.76

Step-by-step explanation:

Which point is on the graph of -5x + 4y = 60​

Answers

You didn’t attach a picture.

The midpoint of AB is M(-6, 1). If the coordinates of A are (-7, -3) what are the coordinates of B?​

Answers

Answer:

Step-by-step explanation:

Consider the points.

(2,5) and (-4,5)

If these points are graphed on a coordinate plane, what is the distance between them?

Answers

Answer:

6 units

Step-by-step explanation:

Use the distance formula, [tex]\sqrt{(x_{2}-x_{1})^{2}+(y_{2}-y_{1})^{2}}[/tex].

Plug the x and y values from the given points into the distance formula:

[tex]\sqrt{([-4]-2)^{2}+(5-5)^{2}}[/tex].

Solve the square root:

[tex]\sqrt{36}[/tex] = [tex]\sqrt{6^{2}}[/tex] = [tex]6[/tex]

Please let me know the answer to this

Answers

I think it’s number 2 sorry if it’s wrong!!

MATHEMATICAL CONNECTIONS Find the dimensions of the polygon with the given area.
Area = 44 ft2

Answers

Answer:

Length = 11

Width = 4

Step-by-step explanation:

The value of dimension are;

Length of polygon is 11 ft.

Width of polygon is 4 ft.

Here,

Area of polygon = 44 ft^2

Length of polygon = ( x - 5 ) ft

Width of polygon = ( x - 12 ) ft

We have to find the dimension of polygon.

What is the polygon?

A two-dimensional geometric figure that has a finite number of sides, is called polygon.

Now,

Area of polygon = 44 ft^2

Length of polygon = ( x - 5 ) ft

Width of polygon = ( x - 12 ) ft

Since, Area of polygon = length x width

Hence,

[tex]44 = ( x - 5 ) ( x - 12 )\\\\44 = x^{2} -5x-12x+60\\\\x^{2} - 17x + 16 = 0[/tex]

After factorizing we get;

[tex]x^{2} - 16x - 1x + 16 = 0\\\\x ( x-16) -1 ( x - 16)= 0\\\\(x-1)(x-16)=0[/tex]

[tex]x = 1, x = 16[/tex]

Since, x = 1 is not possible because its gives the values of dimension in negative.

So, x = 16

Now,

Length of polygon = ( x - 5 ) ft = 16 - 5 = 11 ft

Width of polygon = ( x - 12 ) ft = 16 - 12 = 4 ft

Therefore, Length of polygon is 11 ft.

                Width of polygon is 4 ft.

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Given that ac=22 and bc=7, find ab

Answers

Answer:

I'll look into that answer

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