What is the value of x that makes the equation from the model true.

Answer:

[tex]12.25\pi\,\,m^2[/tex]

Step-by-step explanation:

Given: Circumference of a circle = [tex]7\pi\,\,m[/tex]

To find: Area of a circle in terms of [tex]\pi[/tex]

Solution:

Let r denotes radius of a circle.

Circumference of a circle = [tex]2\pi r[/tex]

[tex]7\pi=2\pi r\\7=2r[/tex]

Divide both side by [tex]\pi[/tex]

[tex]3.5\,m=r[/tex]

Area of a circle = [tex]\pi r^2[/tex]

Put [tex]r=3.5\,\,m[/tex]

[tex]=\pi (3.5)^2\\=12.25\pi\,\,m^2[/tex]

Answer:

A ≈ 3.9

Step-by-step explanation:

 How to solve

A=πr2

C=2πr

A=C2

4π=72

4·π ≈ 3.8993

Therefore, the circle in square meters in the nearest tenths is A ≈ 3.9

Answer:

£1.50

Step-by-step explanation:

If two pens equal 60p

do 2 x 2 = 4

4 pens equal £1.20

to get 1 pen do 60p divided by 2

which equals 30p

now add £1.20 and 30p

Answer:

0.75

Step-by-step explanation:

3/4 is also 0.75

1/4 = 0.25

0.25*3 = 0.75

Answer:

POINT GRIND XD

Step-by-step explanation:

Answer:

8 units

Step-by-step explanation:

2(3x-3)=4x-1

6x-6=4x-1

2x=5

x=2.5

3x-3

3(2.5)-3

4.5

Answer:

113

Step-by-step explanation:

53 is one of the angles in the triangle

Then put 60+53+y=180 you get y=67

x+y=180 you get x=113

Answer:

x = 5

Step-by-step explanation:

9(x - 2) = 27

9x - 18 = 27

     +18    +18

9x = 45

/9    /9

x = 5

Answer:

Step-by-step explanation:

(2[tex]x^{2}[/tex]+3)(x+4)

2[tex]x^{3}[/tex]+8[tex]x^{2}[/tex]+3x+12

Answer: 1. x = 32, 2. x = 16, 3. x = 77

Step-by-step explanation: All of these angles are 90 degree angles, therefore by subtracting the known term from 90, you are able to find the value of x. I hope that this helps :)

Answer:

multiple but if that dont work ion know what to tell you

Answer:

the sum of exterior angle of a polygon is always 360 degree.

therefore,

xº+ 2x°+ 4x°+ 6x°+ 8x°+ 9x° +10x° = 360°

40x = 360°

x = 360/40 = 9

x = 9

The sum of the exterior angles of a polygon is 360 degrees, so the value of x is 9

The exterior angles of the polygon are given as:

xº, 2x°, 4x°, 6x°, 8x°, 9x°  and 10x°

The exterior angles of a polygon add up to 360 degrees.

So, we have:

[tex]x\º+ 2x\°+ 4x\°+ 6x\°+ 8x\°+ 9x\° +10x\° = 360\°[/tex]

Evaluate like terms

[tex]40x\° = 360\°[/tex]

Divide both sides of the equation by 40

[tex]x\° = \frac{360\°}{40}[/tex]

Divide 360 by 40

[tex]x\° = 9[/tex]

Rewrite as:

[tex]x = 9\°[/tex]

Hence, the value of x is 9

Read more about polygons at:

https://brainly.com/question/7079195

Answer:

C

Step-by-step explanation:

Answer: C for the first one and B for the second one

Step-by-step explanation:

hope it helps you

Answer:

[tex]\frac{6}{5}[/tex]

Step-by-step explanation:

let the denominator of the original fraction be x, then

[tex]\frac{x-2}{x}[/tex] ← original fraction

Then

[tex]\frac{2(x-2)}{x+5}[/tex] ← new fraction

The product of original and reciprocal of new is

[tex]\frac{x-2}{x}[/tex] × [tex]\frac{x+5}{2(x-2)}[/tex] ← cancel (x - 2)

= [tex]\frac{x+5}{2x}[/tex] = [tex]\frac{1}{4}[/tex] ( cross- multiply )

4(x + 5) = 2x

4x + 20 = 2x ( subtract 2x from both sides )

2x + 20 = 0 ( subtract 20 from both sides )

2x = - 20 ( divide both sides by 2 )

x = - 10

Then original fraction

[tex]\frac{x-2}{x}[/tex] = [tex]\frac{-12}{-10}[/tex] = [tex]\frac{6}{5}[/tex]

Answer:

do you like harry styles

Step-by-step explanation:

pog champ

41u+6

Sorry I don't really know anything about this subject.            

Answer:

C = 39

Step-by-step explanation:

From the question given above, the following data were obtained:

A = 2x + 108

B = x + 33

C =?

Next, we shall obtain an expression for C. This can be obtained as follow:

A + B + C = 180 (sum of angles in a triangle)

2x + 108 + x + 33 + C = 180

2x + x + 108 + 33 + C = 180

3x + 141 + C = 180

Make C the subject by rearranging

C = 180 – 141 – 3x

C = 39 – 3x

Next, we shall determine the value of x. This can be obtained as follow:

A = 2x + 108

B = x + 33

C = 39 – 3x

A + B + C = 180

2x + 108 + x + 33 + 39 – 3x = 180

2x + x – 3x + 108 + 33 + 39 = 180

3x – 3x + 180 = 180

3x – 3x = 180 – 180

3x – 3x = 0

x(3 – 3) = 0

x(0) = 0

x = 0

Finally, we shall determine C. This can be obtained as follow:

C = 39 – 3x

x = 0

C = 39 – 3(0)

C = 39 – 0

C = 39

Answer:

Yes, each x-value is paired with exactly one y-value (no more than that)

Domain: x = -2, x = 1, x = 4, x = 7

Range: y = -3, y = 5, y = 6

No, the inverse is not a function, the x value of 6 would be paired with two y values (-2 and 7)

Answer:

-x + 3

Step-by-step explanation:

(7x+1​)+​(−8x+2​)

7x + -8x + 1 + 2

-x + 3

Answer: $2,446.08

Step-by-step explanation:

Lets convert the length and width into decimal form so it's easier to understand.

24 1/2= 24.5

12 4/5= 12.8

Now we must multiply to get the area. 24.5x12. 8= 313. 6 ft

Each square inch costs .65 so we must multiply .65 by 12 to see how much a foot costs. 12x0.65= 7.8

Now that we know how much each foot cost lets multiply 313.6 by 7.8. 313.6x 7.8= $2446.08

Answer: 3:45 pm

Step-by-step explanation:

If it takes 30 minutes to get there and 30 minutes to be early. Minus 1 hour from 4:45 pm and you get 3:45 pm

Answer:

3:35 P.M.

Step-by-step explanation:

It is exactly 60 minutes before 4:45 P.M., the latest time they can leave to fulfill all her requirements.

Answer:

11

Step-by-step explanation:

The number with the last value in this data set is 11. All the other numbers are greater than it in terms of numerical value. Imagine if all the numbers were represented through pennies. 11 would have the least amount of pennies.

Hello!

5a - 9a - (-2a) =

= 5a - 9a + 2a =

= -4a + 2a =

= -2a

Good luck! :)

Answer:

4,993 milliliters are in 4.593 liters

Step-by-step explanation:

Plz mark as brainliest if correct! Have a nice day!!!

Answer:

4.593 millimeters

Step-by-step explanation:

is the same

Answer:

3

Step-by-step explanation:

Answer: The angle C measures 120 degrees.

Step-by-step explanation:

For a polygon of n side, the sum of internal angle, in degrees  is given by:

S = (n - 2) x 180

Parallelogram

4 sides, so

S = ( 4 - 2) * 180 = 360

Two pair of equal angles

B and D measure 60

A and C measure x. so

2ₓ + 2 * 60 = 360

2× = 240

× = 240/2

× = 120

The angle C measures 120 degrees

Hope this helps! :)

Answer:

[tex]1 + \frac{3}{x} [/tex]

Step-by-step explanation:

1) Rewrite x² - 9 in the form a² - b² where, a = x and b = 3.

[tex] \frac{ {x}^{2} - {3}^{2} }{ {x}^{2} - 3x} [/tex]

2) use difference of squares: a² - b² = ( a + b ) (a - b).

[tex] \frac{(x + 3)(x - 3)}{ {x}^{2} - 3x} [/tex]

3) Factor out the common term x.

[tex] \frac{(x + 3)(x - 3)}{ x(x - 3)} [/tex]

4) Cancle out x - 3 .

[tex] \frac{x + 3}{x} [/tex]

5) Simplify.

[tex]1 + \frac{3}{x} [/tex]

Therefor, the answer is 1 + 3/x.

Answer:

1 + 3 ÷ x

Step-by-step explanation:

Just doing my streak. All credit goes to the person who answered first

Answer:

126

Step-by-step explanation:

Khan is never wrong :3