The diameter of a circle is 12cm. Find its area in terms of π.

Answers

Answer 1

Answer:

37.68 cm²

Step-by-step explanation:

2πr

2π6

2 × 3.14 × 6

37.68 cm²


Related Questions

1. :4
32+4 x (16 x 2)-2-
37:
---

Answers

Answer

Step-by-step explanation:

mulitiply the numbers

add the numbers

rearrange the numbers

If x = 2, y = 3 and z = 4, calculate the value of each of the following algebraic expression: 2z - 3x =

Answers

Answer:

the answer is 2

Step-by-step explanation:

2(4)-3(2)=

8-6=2

Divide (x^3 - 4x^2 - 2x -5) by (x-5)

Answers

Answer:

Quotient = x² + x + 3

Reminder = 10

Step-by-step explanation:

We need to divide , x³ - 4x² - 2x - 5 by x - 5

x - 5) x³ - 4x² - 2x - 5 ( x² + x + 3

- x³ -(+)5 x²

_______________

0 + x² - 2x - 5

x² -5x

__________________

0 +3x - 5

+3x -15

__________________

+10

Plzz Help me!!!!!!!


A cylindrical barrel holds 10,164 cubic inches of oil (44 gallons). If the cylindrical barrel is 23 inches in diameter, what is the approximate height of the barrel?
a. 21 inches
b. 24 inches
c. 60 inches
d.141 inches

Answers

Answer:

I believe it’s A.21

Step-by-step explanation:

HOPE THIS HELPS YOU

The approximate height of the barrel is 22.9 inches. They are also important in mathematics and engineering, as they are used to model and solve problems in various fields, such as calculus, geometry, physics, and fluid mechanics.

What is Cylinder?

A cylinder is a three-dimensional geometric shape that consists of two parallel, congruent circular bases connected by a curved surface. The curved surface is composed of a set of parallel lines that connect the two circular bases.

here, we have,

The cylinder can be described by several measurements, including its height (the distance between the two circular bases), its radius (the distance from the center of one circular base to its edge), and its diameter (the distance across the cylinder at its widest point, passing through the center of the circular bases).

We can use the formula for the volume of a cylinder to find the height of the barrel:

V = πr²h

We are given that the volume of the oil is 10,164 cubic inches and the diameter (which is twice the radius) is 23 inches.

r = 23/2 = 11.5 inches

10,164 = π(11.5)²h

Solving for h, we get:

h = 10,164 / (π(11.5)²) ≈ 22.9 inches

So the approximate height of the barrel is 22.9 inches.

Learn more about Cylinder from given link

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Hiroto solved the equation 6 – 4|2x – 8| = –10 for one solution. His work is shown below.

6 – 4|2x – 8| = –10

–4|2x – 8| = –16

|2x – 8| = 4

2x – 8 = 4

2x = 12

x = 6

What is the other solution?

–6
–4
2
10

Answers

Answer: x=2 (C)

Step-by-step explanation:

Answer:

C

Step-by-step explanation:

GOT IT RIGHT ON TEST!!!!!

Please help need it today due at 8

Answers

Answer:

slope=3

y intercept=4

Step-by-step explanation:

i did this using the equation y=mx+b m being slope and b being y intercept

CAN SUMONE HEEEELP ME PLEASE I DONT UNDERSTAND LIKE THIS TEACHER REALLY THINK IK EVERYTHING SMH BUT ILL GIVE BRAINLY! thank youuu

Answers

Answer:

16,872

Step-by-step explanation:

Consider the sequence 20, 14, 8, 2, -4, ....
(a) Write a recursive rule to represent the sequence.
(b) Write an explicit rule to represent the sequence.
(c) Find the 30th term in the sequence.
The BEST answer gets brainliest!! Hurry now!

Answers

[tex](a)\quad a_{n+1}=a_n-6\\\\(b)\quad a_1=20,\ d=2-8=-6\implies a_n=20+(-6)(n-1)\\\\{}\qquad a_n=-6n+26\\\\(c)\quad a_{30}=-6\cdot30+26 = -154[/tex]

PLEASE HELP. I will mark branliest

Answers

Answer:

28

Step-by-step explanation:

A . Yes, the pre-image and image are both line segments and the line segment had been translated
B . No the pre-image and image are not both line segments
C . No the image shown has not been translated but another transformation has taken place
D . No the translation did not preserve the segment length

Answers

Answer:D . No the translation did not preserve the segment length

Step-by-step explanation:

Joel is mailing a large envelope to his cousin. The envelope has pictures inside, so he doesn't want to bend it. What is the maximum width for the mail slot???

Answers

Answer:

the maximum width of the mail slot is 25 cm.

u. can find it through phythagoras theorem

Answer:

25

Step-by-step explanation:

Use the pythagorean theorem. Here's how: Since a^2+b^2=c^2, 7^2+24^2=576+49= the square root of 625 which is 25.

write these numbers in order of size starting with the smallest number. 5 to the power of -1, 0.5, -5, 5 to the power of 0​

Answers

Answer:

5^-1, 0.5, 5^0

Step-by-step explanation:

Convert all numbers so that they have the same format.

5^-1 = 0.2

5^0 = 1

Compare:

0.2 < 0.5 < 1

This would be the order of size starting with the smallest.

Make sure you use the numbers in the problem and not the ones that were simplified.

Which expression is equivalent to 2(3g - 4) - (8g + 3)

Answers

Answer:

4

Step-by-step explanation:

Hope this helps! : )

2(3g - 4) - (8g + 3)

Distributive property

6g - 8 - 8g - 3

Combine like terms

-2g - 11

Answer:

4

Step-by-step explanation:

2(3g-4)-(8g+3)

6g-8-8g-3

-2g-11

surface area of 30, 8,20

Answers

Answer:

hjub oubh

Step-by-step explanation:

1. Find the area of the composite figure to the nearest hundredth.
55 mm
32.5 mm
12.5 mm
12.5 mm
total area =
mm?

Answers

Answer:

[tex]745.45 mm^{2}[/tex]

Step-by-step explanation:

(semicircle) A1 = 245.45 mm

(rectangle) A2 = 312.5 mm

(triangle) A3 = 187.5 mm

Formula for semicircle = [tex]A = \frac{1}{2} \pi r^{2}[/tex]

[tex]\frac{1}{2}\pi 12.5^{2} = 78.13\pi = 245.45 mm[/tex]

Formula for rectangle = [tex]A = lw[/tex]

[tex]25 x 12.5 = 312.5 mm[/tex]

Formula for triangle = [tex]A = \frac{1}{2} bh[/tex]

[tex]\frac{1}{2} 30(12.5) = 187.50mm[/tex]

Now we add them all up to get our answer

[tex]245.45 + 312.5 + 187.5 =745.45mm^{2}[/tex]

The area of the composite figure is 741.31 mm².

What is area?

The area of any object is given by the space covered by it.

Given is a composite figure having shapes, a semicircle, a triangle and rectangle,

We need to find the area of the composite figure,

So, to find the same we will find the areas of the figure and then add them,

So,

Area of a semicircle = π × radius² / 2
= 3.14 × 12.5² / 2

= 245.31 mm²

Area of a triangle = 1/2 × base × height

= 1/2 × 12.5 × 30

= 187.5 mm²

Area of a rectangle = length × width

= 12.5 × 25

= 312.5 mm²

Now, the whole area = 245.31 + 187.5 + 312.5 = 741.31 mm²

Hence the area of the composite figure is 741.31 mm².

Learn more about area click;

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What is the answer to 1+1

Answers

Answer:

2

Step-by-step explanation:

Answer:

2

Step-by-step explanation:

1+1=2 Now give me brainliest plz

Another volume question and dw it’s not a test its just a assignment that just stress me out

Answers

Answer:

volume = 337.2 ft³

Step-by-step explanation:

volume = base x height = 84.3 x 4 = 337.2 ft³

Malik has 3 boxes of baseball cards. Each box has 2 containers with 8 cards in each container.

Malik multiplies 8 x 2 and gets 16.

He then multiplies 3 x 2 and gets 6.

Then he multiplies 16 x 6 and comes to his final answer of 96.

Do you agree with Malik? Why or why not?

Answers

Answer:

no

Step-by-step explanation:

I think he did the first step correct, 8×2=16.

He did that because in each box there are 2 containers with 8 cards. so all together there are 16 cards in each box.

But then he should've multiplied 16×3=48 because there are three containers with the 16 cards.

A spinner is divided into 12 equal sections numbered 1-12. What is the probability of landing on a section with a number that is less than 5?

Answers

Answer:

4/12

Step-by-step explanation:

There is a 1 in 12 chance of any number being spun on the wheel. Because there are 4 numbers less than 5, there is a 4 in 12 chance of one of those numbers being spun.

solve the equation b -2 = -2 - 2b

Answers

Answer:

No solution

Step-by-step explanation:

b-2+2=+2-2-2b

b=-2b

A bag contains 8 red pens, 7 blue pens, and 14 black pens. Denato wants to pull a blue pen from the bag. What is the sample space for this experiment?

Answers

Answer:

The sample space is 29........

Look at the figures. How can you prove the triangles are congruent?

Answers

You can prove it by the SSS postulate/theorem.

1/4 • (-12) help please

Answers

Answer:

-3 is the answer to this question.

Answer: Your answer is -3

Step-by-step explanation:

1/4 x -12/1

-12 is  whole number so when multiplying just put it over 1 to make it a fraction.

then you get -12/4 and this is simplified to -3. Make sure you make it negative since the 12 is negative! Hope this helps! I love fractions so let me know if you need more help!  :)

Hi hi bay what is the name of the church in the park for the park in west bay park in orange brown orange yellow yellow white orange yellow green green yellow green purple yellow yellow green orange yellow green yellow white green green orange green green purple green green orange yellow

Answers

Answer:

Its called west bay Advent christian church, hope it helps

also gotta love our space friends XD

Step-by-step explanation:

Segment FG begins at point F(-2, 4) and ends at point G(-2, -3). The segment is translated 3 units left and 2 units up, then reflected across the y-axis to form segment F'G'.How many units long is segment F'G'?

Answers

Answer:

[tex]F'G' = 7[/tex]

Step-by-step explanation:

Given

[tex]F = (-2,4)[/tex]

[tex]G = (-2,-3)[/tex]

Required

Distance of F'G'

The transformation that give rise to F'G' from FG are:

TranslationReflection

The above transformations are referred to as rigid transformation, and as such the side lengths remain unchanged.

i.e.

[tex]F'G' = FG[/tex]

Calculating FG, we have:

[tex]FG = \sqrt{(x_1 - x_2)^2 + (y_1 - y_2)^2}[/tex]

Where:

[tex]F = (-2,4)[/tex] --- [tex](x_1,y_1)[/tex]

[tex]G = (-2,-3)[/tex] --- [tex](x_2,y_2)[/tex]

[tex]FG = \sqrt{(-2 - -2)^2 + (4 - -3)^2}[/tex]

[tex]FG = \sqrt{(0)^2 + (7)^2}[/tex]

[tex]FG = \sqrt{0 + 49}[/tex]

[tex]FG = \sqrt{49}[/tex]

Take positive square root

[tex]FG = 7[/tex]

Recall that:

[tex]F'G' = FG[/tex]

[tex]F'G' = 7[/tex]

FREE PTS! If you were to go to any dream reality, where would you go? ​

Answers

Answer:

I would be in vampire diaries world bc why not

Answer:

I would go to a dream reality where I could hop into any book, or fanfiction of my choosing, and actually talk and communicate with the characters, with all the characters knowing I was always there, just didn't talk to me much, and if the people there have powers, I can choose mine.

Step-by-step explanation:

A calculator screen displays 9.837E8. Write this number in standard form.​

Answers

Answer:  983.7 x 10^6

its in the most standard form it can be in now.

The standard form of the given number is 983.7 x 10^6.

We have given that,

The screen displays 9.837E8. Write this number in standard form.​

We have to write the above equation in standard form.

What is the standard form of the number?

The standard form of a number is a way of writing the number in a form that follows certain rules. Any number that can be written as a decimal number, between 1.0 and 10.0, multiplied by a power of 10, is said to be in standard form.

We have given  9.837^8

Therefore the standard form of the given number is  983.7 x 10^6.

To learn more about the standard form of number visit:

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Can any on help on 4-6 only please it would be grateful

Answers

Answer:

4. h=9in

5. 150.8[tex]m^{2}[/tex]

6. 301.6[tex]in^{2}[/tex]

Step-by-step explanation:

4.

Surface area of a rectangular prism form : A=2(wl+hl+hw)

Substitute in values from the question: 558=2[(9)(11)+h(11)+h(9)]

Multiply where applicable: 558=2[(99)+11h+9h]

Combine like terms: 558=2[(99)+20h]

Divide both sides by 2: 279=(99)+20h

*note- This step can also be seen as multiplying the right side by 2 without messing with the left at all (558=(198)+40h) then you would solve in the same fashion as I will from here just with the alternative numbering*

Subtract to isolate the h: 180=20h

Divide both sides to isolate the h: 9=h

Now we see that the missing dimension h=9in

*note- I did not bold the equations with squares so please don't be confused by that*

5.

Surface area of a cylinder form: A=2πrh+2π[tex]r^{2}[/tex]

Substitute in values from the question: A=2π(3)(5)+2π[tex]3^{2}[/tex]

Multiply were applicable: A≈94.2+56.5

Add remaining values: A≈150.8

Now we see that the total surface area is 150.8[tex]m^{2}[/tex]

*note- whenever we solve for volume or SA of a figure we square the unit ([tex]m[/tex]➞[tex]m^{2}[/tex])*

6.

Surface area of a cylinder form: A=2πrh+2π[tex]r^{2}[/tex]

Substitute in values from the question: A=2π(6)(2)+2π[tex]6^{2}[/tex]

*note- we use 6 instead of the given value 12 because the equation calls for the radius and not the diameter*

Multiply were applicable: A≈75.2+226.2

Add remaining values: A≈301.6

Now we see that the total surface area is 301.6[tex]in^{2}[/tex]

*note- whenever we solve for volume or SA of a figure we square the unit ([tex]in[/tex]➞[tex]in^{2}[/tex])*

Hope this helps :)

In the cafeteria, a principal asked students what fraction of their plates contained vegetables. The line plot displays the students' responses. How many more plates of vegetables did the students who responded of a plate have than the students who responded of a plate? (look at picture)

Answers

Answer:

It should be A 3 1/4

Step-by-step explanation:

Someone help and PLEASE make sure it’s right

Answers

Answer:

Acute angle, doesn't have a 90 degree angle to be a right triangle, neither a wide angle to be an obtuse triangle.

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