There is a bag with only red marbles and blue marbles. The probability
of randomly choosing a red marble is 2/9. There are 63 marbles in total in
the bag and each is equally likely to be chosen. Work out how many red
marbles there must be.​

Answer:

2.4 is the correct answer

I assume the _ characters are supposed to be minus signs, as in

3x ² + 3y ² - 7x - 6y - 3 = 0

Move the 3 to the right sides, and complete the square in x and y :

(3x ² - 7x) + (3y ² - 6y ) = 3

3 (x ² - 7/3 x) + 3 (y ² - 2y ) = 3

x ² - 7/3 x + y ² - 2y = 1

(x ² - 7/3 x + 49/36) + (y ² - 2y + 1) = 1 + 49/36 + 1

(x - 7/6)² + (y - 1)² = 121/36

(x - 7/6)² + (y - 1)² = (11/6)²

The circle thus has radius 11/6, so its diameter is 2 • 11/6 = 11/3.

Answer:

The ordered pairs for 1 and 3 are:

(1,2) (3,8)

Now use the slope formula:

(y2-y1)/(x2-x1)

(8-2)/(3-1)= 6/2 = 3

Step-by-step explanation:

Answer:

Step-by-step explanation:

1       1                   1         11

2      2                  2        22

3      3                    

4      4

and now u see the first i think

Answer:

Step-by-step explanation:

The number of non-fiction read was 5 less than 4 times the number of fiction books.

Assume fiction books are x.

An equation representing this would be:

x + (4x - 5) = 30

5x - 5 = 30

5x = 30 + 5

x = 35 / 5

x = 7 fiction books

Non-fiction books:

= 4x - 5

= 4 * 7 - 5

= 23 non - fiction books

Answer:

7+8=15

Step-by-step explanation:

Answer:

Step-by-step explanation:

1.14, just like 114%

Answer:

parallelograms

Step-by-step explanation:

all sides well never touch no matter how far they stretch.

Answer:

x = -3/2 or -1.5

Step-by-step explanation:

Answer:

464m^2

Step-by-step explanation:

Given data

Dimension of the regular playground

Length= 28m

Width= 15 m

We want to extend both sides by 1 m

Length= 28+1= 29m

Width= 15+1= 16m

Hence the area

Area=Length*Width

Area= 29*16

Area= 464m^2

The Area is 464m^2

Answer:

https://brainly.com/question/22433896?answering=true&answeringSource=feedPublic%2FhomePage%2F1

Step-by-step explanation

Answer:

C, f(x) = 3(2)^x

Step-by-step explanation:

Since the y-intercept is 3, the function will have 3 multiplying by some number to the power of x.

As x increases by 1, we notice that y multiplies by 2 every time.

This leads us to believe that the equation is 3 * 2^x

The exponential function represented by the graph is:

[tex]f(x) = 3(2)^x[/tex]

It is modeled by:

[tex]y = ab^x[/tex]

In which:

In the graph, there is point (0,3), hence a = 3, and it also has point (1,6), hence:

[tex]6 = 3b[/tex]

[tex]b = 2[/tex]

Thus, the equation is:

[tex]f(x) = 3(2)^x[/tex]

More can be learned about exponential functions at https://brainly.com/question/25537936

Answer: 

Step-by-step explanation:

Answer:

$255.24

Step-by-step explanation:

Area of the floor= 6×6=36 yards²

1 square yard : $7.09

36 square yards : $255.24

$7.09×36= $255.24

Answer:

The volume of the given rectangular prism is B. 270 cm³.

Step-by-step explanation:

The volume of a rectangular prism is the product of its length, its width, and its height.

The volume of a rectangular prism =  

The length of the prism is 9 cm, the width is 2 cm and the height of the rectangular prism is 15 cm.

Step 2:

The volume of a rectangular prism =  

So the volume of the given rectangular prism is 270 cm³. This is option B.

Answer:

jajjajajja eres bien menos

Answer:

Pythagorean Theorem:

a^2 + b^2 = c^2

30^2 + b^2 = 35^2

b^2 = 325

b=18.03

Let me know if this helps!

Answer:

associative property

Step-by-step explanation:

This is the associative property. The numbers and signs on both sides of the equation stay IN THE SAME ORDER, this is a big hint!

Answer:

associative property

Step-by-step explanation:

Answer:B

Step-by-step explanation:

Answer:

1,1 2,2 x=y so it would be the same numbers for both points

Step-by-step explanation:

[tex] \huge \color{Lime} Answer: [/tex]

[tex] \medium \color{Red} Cone[/tex]

[tex] \medium \color{Yellow} Cylinder [/tex]

[tex] \medium \color{Purple} Rectangular Prism[/tex]

[tex] \medium \color{Green} Triangular Prism [/tex]

[tex] \medium \color{Blue} Rectangular Pyramid [/tex]

Answer:

smaller ∡ = 26°

larger ∡ = 154°

Step-by-step explanation:

opposite angles are congruent

adjacent angles are supplementary

in this problem, the angles are supplementary

'x' = measure of smaller angle

x + 50 + 4x = 180

5x = 130

x = 26

The given information and the relationship between the angles of a

parallelogram can be used to find the interior angles.

Reasons:

A property of a parallelogram is that the diagonally opposite angles are

equal, and the adjacent angles are supplementary.

Therefore, two of the four interior angles of a parallelogram are equal.

Let x and y represent the two angles of different measure in the

parallelogram

y = 4·x + 50°

y + x = 180°

Which gives;

y = 180° - x

Therefore;

180° - x = 4·x + 50°

180° - 50° = 4·x + x

130° = 5·x

x = 130° ÷ 5 = 26°

y = 4 × 26° + 50° = 154°

Therefore;

Learn more about the properties of a parallelogram here:

https://brainly.com/question/9793817

Answer: click point (-4,4)

Step-by-step explanation:

here is the answer for the x and y axis

when in brackets x always comes first and y second

in this case x is -4 and y is 4

x axis goes like this----

y axis goes like this |

Answer:

[tex]y = \frac{1}{2} x- 4[/tex]

Step-by-step explanation:

You can solve this by saying:

[tex]\Delta y = s \Delta x[/tex]

so in this case we have

[tex]y - (-2) = \frac{1}{2}(x- 4)\\[/tex]

Now we can simply solve for y:

[tex]y + 2 = \frac{1}{2} x- 2\\y = \frac{1}{2} x- 4[/tex]

Answer:

√{99×99}=√99²=±99 is the value of given expression

Step-by-step explanation:

since √x²=±x

Answer:

[tex]±99.[/tex]

Step-by-step explanation:

[tex] = \sqrt{99 \times 99 } [/tex]

[tex] = \sqrt{9801} [/tex]

[tex] = ±99.[/tex]

Answer:

16

Step-by-step explanation:

[tex] \sqrt{((200.96 \times 4) \div 3.14)} [/tex]

Answer:

This is an equation of a line in standard form. The "C" is the constant of the equation

Step-by-step explanation: