There is a bag filled with 4 blue and 5 red marbles.
A marble is taken at random from the bag, the colour is noted and then it is replaced.
Another marble is taken at random.
What is the probability of getting 2 of the same colour?

Answers

Answer 1

Answer:

The probability that we got is 35%


Related Questions

the price of a 70 inch tv was reduced from 800$ to 600$ on black friday by what percentage was the tv reduced

Answers

well, from 800 to 600 is 200 bucks.

if we take 800 to be the 100%, what is 200 off of it in percentage?

[tex]\begin{array}{ccll} amount&\%\\ \cline{1-2} 800 & 100\\ 200& x \end{array} \implies \cfrac{800}{200}=\cfrac{100}{x}\implies 4=\cfrac{100}{x} \\\\\\ 4x=100\implies x=\cfrac{100}{4}\implies x=25[/tex]

Find the median. 12,5,9,18,22,25,5

Answers

Answer:

The answer is 12.

Answer:

12

Step-by-step explanation:

To Find Median;

Arrange data values from lowest to highest valueThe median is the data value in the middle of the setIf there are 2 data values in the middle the median is the mean of those 2 values.

Solve;

Least to Greatest:

5, 5, 9, 12, 18, 22, 25

5, 5, 9, 12, 18, 22, 25

5, 5, 9, 12, 18, 22, 25

5, 5, 9, 12, 18, 22, 25

Hence Median = 12.

[RevyBreeze]

PLEASE HELP! I WILL MAKE YOU BRAINLIST!

Answers

Answer:

your answer would be B

Step-by-step explanation:

every item is 9 dollars divide the cost by the number of items it is always 9 meaning 9 is the constant. hope this helps.

Answer:

18  

To verify the constant you only have to verify every option by adding those options by itself and the one that matches your information is the correct answer

In which choice is y a function of x?

Answers

Answer:

First choice

Step-by-step explanation:

Check if a relation is a function by looking at the x's.

No repeated x's? Then it's a function.

Repeated x's but the y is the same y both times? It's a function.

Repeated x's and different y's? NOT A FUNCTION.

see image

These figures are similar. The area of one is given. Find the area of the other.

Answers

Answer:

100 in^2

Step-by-step explanation:

(15/21)^2 x 196 = 100

25 points!! :))
15% of what number is 900?

60
13,500
6,000

Answers

Answer:

6,000

I hope this helps u!

Answer:

6000 is the answer!

3500 ÷ (34 + 8 × 2) - 4

Answers

Answer:

3500

34+(8)(2)

−4

=66

Find the difference 9/x+1 - 2x/x+1

Answers

Answer:

I think the answer is 9-2x/x+1

Claudia added an equilateral triangle shape that is one inch high and one inch wide to a slide in her presentation. She clicked in the Shape Height box, typed 3, and then pressed ENTER. What happened to the shape

Answers

The effect of Claudia's changing the height of of the triangle from 1 inch

to 3 inches is the option;

The height of the triangle changed to three inches but the width remained 1 inch

Which option gives the effect of changing the height?

The given dimensions of the equilateral triangle Claudia added are;

Height of the triangle = 1 inch

Width of the triangle = 1 inch

The value Claudia typed in the Shape Height box = 3

Required:

What happened to the shape after she press Enter

Solution:

By entering 3 in the Shape Height box, changes the height of the

equilateral triangle to 3 inches but the width remains 1 inches

From a similar question posted online, the correct option is therefore;

The height of the triangle changed to three inches but the width remained 1 inch

Learn more about triangles here:

https://brainly.com/question/16430835

Write the expression in exponential form

Answers

Answer:

The basic formula is y=bx y = b x . This can be where 25 is equal to 5 times 5, or 1000 is equal to ten times ten times ten, and can then be written as 52 5 2 or 103 10 3 . The number that is repeated is called the base, and the number of times it repeats is called the exponent, power, or degree.

find the missing length indicated​
(help me find x)

Answers

Answer:

=> x = 192

Step-by-step explanation:

[tex] \frac{144}{x} = \frac{x}{256} [/tex]

therefore we cross multiply x • x and 144 multiply 256

[tex] {x}^{2} = 144 \times 256[/tex]

multiply 144 by 256

[tex] {x}^{2} = 36864[/tex]

take √ 36864

[tex]x = 192[/tex]

PLS HELP IT'S DUE TODAY

Answers

Answer:

i am so srry but i dont know but good luck

Step-by-step explanation:


A parabola has focus (5,7) and directrix y=0(the X-axis). Write an equation that says point (x,y) is on the
parabola.

Answers

Answer:

Step-by-step explanation:

focus of the parabola is (2,0) and directrix is x=-2. Here,a=2.So, Equation becomes, y2=4∗2x⇒y2=8x, which is the required equation of parabola.

The equation of a parabola with the given focus and directrix is x²-10x+74=14y.

What is an equation of a parabola?

A parabola refers to an equation of a curve, such that a point on the curve is equidistant from a fixed point, and a fixed line

Given that, a parabola has focus (5,7) and directrix y=0.

When the focus (h, k) of a parabola and the equation of the directrix y = c are given, the equation of the parabola is given by (x-h)²+k²-c²=2(k-c)y

Here, y=c=0

Now, (x-5)²+7²-0²=2(7-0)y

x²-10x+25+49=14y

x²-10x+74=14y

Therefore, the equation of a parabola is x²-10x+74=14y.

To learn more about the equation of a parabola visit:

brainly.com/question/11911877.

#SPJ2

Find the circumference and area of a circle with a radius of 11 inches.

Answers

Find the circumference and area of a circle with a radius of 11 inches.

Answer:

69.12

(5,7) (7,9) find slope

Answers

Answer:

1

Step-by-step explanation

Since you are given two points you can calculate the slope by use the formula Y1-Y2/X1-X2.

In this case:

Y1 = 5

Y2 = 7

X1 = 7

X2 = 9

(5-7)/(7-9) = -2/-2 = 1

10 friends decided to buy a joint gift for their best friend. But as it happens, the two gave up and decided to buy her a present themselves. Thus, the remaining 8 friends had to add 50 dollars each to buy the gift.
How much did the gift cost?

Answers

Answer:

The answer is $2000

Step-by-step explanation:

8 had to give an extra $50 each.

8 x 50 = 400

400 ÷ 2 ( the two that changed their mind) = 200

Each person was to give $200

10 × 200 = 2000

Place the steps in solving the following equation in the correct order (from top to bottom).

Answers

Answer:

Step-by-step explanation:

1- Distribute

2-Combine like terms

3. divide on both sides

4- subtract from both sides

3(x - 1) = 2x + 9
Do this equation have one solution, many solution, or no solution?

Answers

9514 1404 393

Answer:

  1 solution

Step-by-step explanation:

The coefficients of x are different on each side of the equal sign, so this equation has one solution.

_____

Additional comment

If the x-coefficients are the same on each side of the equal sign, then you need to look at the constants. If they are the same, there are an infinite number of solutions; if they are different, no solutions.

This equation simplifies to ...

  3x -3 = 2x +9

  x = 12 . . . . . . . . add 3-2x to both sides

The solution of expression by applying distributive property and combining like terms,

⇒ x = 12

Given that,

The mathematical expression is,

⇒ 3(x - 1) = 2x + 9

Now, simplify the expression by applying distributive property and combining like terms,

⇒ 3(x - 1) = 2x + 9

Apply distributive property,

⇒ 3x - 3 = 2x + 9

Combine like terms,

⇒ 3x - 2x = 9 + 3

Therefore, the solution of expression is,

⇒ x = 12

To learn more about the mathematical expression visit:

brainly.com/question/1859113

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Jack rides A bike 8 miles and 3/4 of an hour . Use Vocabulary for unit rates and fractions to explain how to find jacks speed in miles per hour. Then find jacks speed

Answers

Not sure at all sorry.

Describe the transformation in g(x) = −3(x) as it relates to the graph of the parent function.

vertical translation:
horizontal translation:
dilation:
reflection:

Answers

dilation and reflection
-multiplication of - =reflection
example -(x)
-multiplication of any number other than 1=dilation
example 3x
-addition/subtraction inside the function=horizontal translation
Example (x-3)
-addition/subtraction outside the function=vertical translation
Example x-3

The scatterplot and table show the weekly profit in dollars earned from the sale of pastries at seven different prices. The data can be modeled by a quadratic function.
Which function best models the data?
A)y = 0.001x2 - 0.426x + 35.672
B)y = -60.4x2+ 348.1x - 334.2
C)y = 0.001x2+ 35.672
D)y = -60.4x2 - 334.2

Answers

The table is an illustration of a quadratic regression model

The function that best models the data is y = -60.4x^2 +348.1x -334.2

How to determine the function that models the data?

To determine the function that models the data, we make use of a graphing calculator.

Using the graphing calculator, we have the following calculation summary

a = -60.4

b = 348.1

c = -334.2

A quadratic regression model is represented as:

y = ax^2 + bx + c

So, we have:

y = -60.4x^2 +348.1x -334.2

Hence, the function that best models the data is y = -60.4x^2 +348.1x -334.2

Read more about regression models at:

https://brainly.com/question/17844286

What are the x-intercepts of y = 2x² + 15x + 7?

Answers

I’m
The answer is o dont no 1+1=52 dot is the answer

A different camera is selling for $7. 50 off the regular price. It was discounted 15%. What was the original price of the camera? $112. 50 $75. 00 $50. 00 $45. 0.

Answers

Answer:

112.50

Step-by-step explanation:

10% added 7.50 is 75

5% added to 7.50 is is 37.50

75+37.50= 112.50

What is 8s-3x+4k I’m confused

Answers

It can’t be. There’s something wrong with the equation.

Which numbers are factors of 15? help me out here!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!

Answers

Answer:

hello

they are

1 - 3 - 5 and  15

Step-by-step explanation:

jdoijdie'owjfe]whfjjjjjjjjj

Answers

Answer:

[tex] \: \: \: \: \: \: \: [/tex]

I'm From Philippines

I hope we can be friends.

25 points please help me with this

Answers

Answer:

Step-by-step explanation:

f(-5) = -(-5) + 1

        = 5 +1

        = 6

Answer:

f(-5) = -(-5) + 1

       = 5 +1

       = 6

Step-by-step explanation:

can i maybe get branlyest i only have 1 one rn it would help

Solve system of equations

3x+6y=18
X+3y=15

Answers

Answer:

x = - 12, y = 9

Step-by-step explanation:

Given the 2 equations

3x + 6y = 18 → (1)

x + 3y = 15 → (2)

Multiplying (2) by - 3 and adding to (1) eliminates the term in x

- 3x - 9y = - 45 → (3)

Add (1) and (3) term by term to eliminate x

- 3y = - 27 ( divide both sides by - 3 )

y = 9

Substitute y = 9 into either of the 2 equations and evaluate for x

Substituting into (2)

x + 3(9) = 15

x + 27 = 15 ( subtract 27 from both sides )

x = - 12

Solution is (- 12, 9 )

write and solve an equation.
The current temp is 54•F. It's expected
to rise 2.5•F each hour. In how many
hours will the temp be 84•F

Answers

Answer:

12

Step-by-step explanation:

84-54=30

30/2.5=12

Kira received a $45.75 gift card for a photo center. She used it to buy prints that cost 20 cents each. The remaining balance, B (in dollars), on the card after buying x prints is given by the following function.
B(x) =45.75-0.20x

What is the remaining balance on the card if Kira bought 30 prints?

Answers

Answer:

$39.75

Step-by-step explanation:

0.2 X 30 = 6

45.75 - 6 = 39.75

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