Find the area of a circle with a diameter of 8cm.

Find The Area Of A Circle With A Diameter Of 8cm.

Answers

Answer 1

Answer:

50.24

Step-by-step explanation:

Area = r^2 x 3.14 (pi)

Radius = 8 ÷ 2 = 4

4² = 16

16 x 3.14 = 50.24

Area = 50.24 cm ²


Related Questions

Write the equation of the line, in slope-intercept form, with the
following information:
slope: -2
y-intercept: (0, -3)

Answers

y = 2x-3

look at comments for more!!

What is 0.00047 in standard form.​

Answers

Step-by-step explanation:

0.00047. = 47÷10 000

=4.7×10/10^-5

= 4.7×10^-4

If a triangle is rotated about the y-axis as shown below, what three-dimensional polyhedral would be formed?

An image of a right triangle centered at the origin is shown with an arrow showing motion about the y axis.

(1 point)

Triangular prism
Cone
Cylinder
Square pyramid

Answers

Answer:

Cone

Step-by-step explanation:

I took the test and got it right :)

The triangle is rotated about the y-axis then a cone will be formed.

It is given that the triangle is rotated about the y-axis as shown in the picture.

It is required to find what three-dimensional polyhedral would be formed.

What is the triangle?

The triangle can be defined as a three-sided polygon in geometry and it consists of three vertices and three edges. The sum of all the angles inside the triangle is 180°.

We have an image of a right triangle centered at the origin in the picture, if we rotate it about the y-axis we will get a cone because the side which is at the y-axis will be fixed and the base of the triangle will move about the y-axis which will make a circular shape similarly the other side(hypotenuse) will also rotate about the y-axis which will create an outer surface for the cone.

Thus, the triangle is rotated about the y-axis then a cone will be formed.

Learn more about the triangle here:

brainly.com/question/25813512

When the function ƒ(x) = 4x−2 is evaluated for x = 3, the output is:
-4
-6
-16
-none

Answers

Answer:

None

General Formulas and Concepts:

Pre-Algebra

Order of Operations: BPEMDAS

Brackets Parenthesis Exponents Multiplication Division Addition Subtraction Left to Right

Algebra I

Terms/Coefficients

Step-by-step explanation:

Step 1: Define

f(x) = 4x - 2

x = 3

Step 2: Evaluate

Substitute in x [Function]:                                                                                f(3) = 4(3) - 2Multiply:                                                                                                             f(3) = 12 - 2Subtract:                                                                                                            f(3) = 10

I need help what’s the answerrr

Answers

The answer is 47. Just keep adding 4.

Calculate the total mass of 3 blocks of cheese each weighing 2.3 kg,4.75kg and 0.56kg respectively.​

Answers

Answer:

7.61 Kg

Step-by-step explanation:

Total mass of all the cheese.

What is the simplified value of the exponential expression 27 ^1/3

Answers

Answer:

27^1/3=3^3×1/3=3^1=3

therefore required answer is 3.

Answer:

3

Step-by-step explanation:

(27)^1/3

(3^3)^1/3

3

As 3*3*3 is 27 so we can write 3^3 ...both power got cancelled hence we got 3 as a answer

A pizza place offers 10 topping choices for their pizzas. How many different two-topping pizzas can you order?
A. 2
B. 45
C. 90
D. 100​

Answers

You can order 100 different two- toppings pizzas

Answer:

B. 45

Just took the test!

%
Jaden goes to her dance class every
10 days and Scarlett goes to the same dance
class every 5 days. If they are together at the
class on Saturday, what is the next day they
will be together at the dance class?

Answers

Answer:

tuesday is answere .........

The table below shows the relationship between
the heights and volumes of several cubes.

Answers

Answer: F

Step-by-step explanation:

In parallelogram IFGH, mF = (x + 20° and mi
(4x – 10)
Find the value of x.

Answers

Answer:

x = 34

Step-by-step explanation:

4x - 10 + x + 20 = 180

5x + 10 = 180

5x = 170

x = 34

Answer:To find the value of x, we can use the property of opposite angles in a parallelogram. In a parallelogram, opposite angles are congruent.

Given that mF = x + 20° and mi = 4x - 10, we can set these two expressions equal to each other:

x + 20° = 4x - 10

Now, let's solve for x:

x - 4x = -10 - 20°

-3x = -30°

Divide both sides by -3:

x = -30° / -3

x = 10°

Therefore, the value of x is 10°.

Step-by-step explanation:

Solve for y in the following equations: -4x -8y = -8 when x = -4

A) 5
B) 3
C)-5
D) 8

Answers

The answer is B) 3

Just substitute -4 for x and solve for y

-4(-4) -8y = -8
16-8y=-8
-8y=-24
y=3

How many triangles exist with the given lengths? 3 in, 4 in, 2 in

Answers

Answer:

1

Step-by-step explanation:

given the following sequences : -17 -25 -33 -41... write an explicit formula and find the 28th term in this sequence

Answers

Answer:

a(n) = -8n -9

a(28)  = -233

Step-by-step explanation:

a(n) = a(1) + (n - 1)d

n is the nth term, a(1) is the first term, d is the common difference.

*d = -25 - (-17) = -8

a(n) = -17 + (n - 1)(-8)

      = -17 + (-8n + 8)

      = -17 - 8n + 8

      = -8n - 9

For the 28th term

a(28) = -8(28) - 9

        = -224 - 9

        = -233

Do you know how to solve this?

Answers

Answer:

[tex]x=11[/tex]

Step-by-step explanation:

The sum of all the angles in a triangle is always 180 degrees.

Hence,

[tex](7x-17)+42+78=180[/tex]

Remove the brackets:

[tex]7x-17+42+78=180[/tex]

Add/Subtract the numbers:

[tex]7x+103=180[/tex]

Subtract 103 from both sides:

[tex]7x+103-103=180-103[/tex]

[tex]7x=77[/tex]

Divide both sides by 7:

[tex]\frac{7x}{7}=\frac{77}{7}[/tex]

[tex]x=11[/tex]

Answer:

X = 11

Step-by-step explanation:

This triangle will add up to 180 degrees

Our angles we have right now our 42 and 78 I add those up so I know how much the missing angle will have to equal to add up with the others to equal 180 so 42 + 78 = 120

So our other angle will have yo equal 60 so we have to find out what multiplied by 7 subtracted by 17 equals 60 well 7 x 11 = 77 and 77 - 17 = 60 so x = 11

XYZ will be translated so that the coordinates of X' are (5,11). What will be the coordinates of Z'? A= (5,8) b= (6,7) c= (7,6) d= (8,5) p.S - I'm super new here and just now figuring out how to work this website...

Answers

Answer:

[tex]z' = (6,7)[/tex]

Step-by-step explanation:

Given

[tex]X' = (5,11)[/tex]

See attachment

Required

The image of Z

From the attachment:

[tex]X = (7,11)[/tex]

This implies that:

[tex]X' = (x - 2,y)[/tex]

Using the same rule for z;

[tex]z = (8,7)[/tex]

[tex]z' = (8-2,7)[/tex]

[tex]z' = (6,7)[/tex]

If the nth term of a sequence is
10n - 6 what is the 11th term?​

Answers

Answer:

104 is the answer to the question

Step-by-step explanation:

10(11)-6=110-6=104

Pls, answer!!!!. Please answer the Geometry worksheet. 50 points, and brainliest

Answers

Answer:

you didnt put the picture out !!!!!!!!

can i get more information or a picture so i can help

PLEASE HELP I WILL GIVE BRAINIEST. How much students received between 8 and 9 gifts?

Answers

Answer:

9

Step-by-step explanation:

9 students did

Answer:

It would appear that 9 students recieved between 8 and 9 gifts.

Step-by-step explanation:

If you look at the X axis and see the gifts recieved, and the Y axis and see the students, you can easily add those two together and get the answer.

I hope I helped you, and a "Brainliest" is always appreciated! ☺

Andrea claims that any two cross sections of a cylinder that lie on parallel planes are congruent.

Answers

Answer:

A)No; any two cross sections of a cylinder that lie on planes parallel to the bases of the cylinder are congruent.

Step-by-step explanation: I had to answer it in class and got it right

How can you use the properties of transformations to explain the connections between geometry and Algebra II?

Answers

Answer:

The correspondence between coordinates and geometric points ( vertices of angles ) shows the connections between Geometry and Algebra IIThe description of triangles using; sine law, cosine law can be used to show the relationship between Algebra and geometry

Step-by-step explanation:

The properties of transformations which are : distance, angles , parallelism , can be used to explain the connections between Geometry and Algebra II.

The correspondence between coordinates and geometric points ( vertices of angles ) shows the connections between Geometry and Algebra IIThe description of triangles using; sine law, cosine law can be used to show the relationship between Algebra and geometry as well

Geometry Unit 10 Review Pls Help its ASAP

Answers

Answer:

21. 10

22. 17.4

Step-by-step explanation:

apply the pathagorean theorem.

a^2 + b^2 = c^2

What is the value of x?
(9x - 3)
(6x)
48°
Enter your answer in the box.
X=

Answers

Answer:  x = 9

Step-by-step explanation:

The sum of three interior angles of a triangle is 180°.

(9x - 3)  + (6x)  + 48° = 180°

9x - 3 + 6x + 48 = 180

15x + 45 = 180

15x = 135

x = 9

In a cookie jar containing 6 chocolate chip cookies, 8 wafer cookies and 10 double chocolate cookies, what is the

probability that a person who isn't looking when they get a cookie will get a chocolate chip cookie?

Group of answer choices

15%

20%

33%

25%

Answers

Answer:

25%

Step-by-step explanation:

10+8+6= 24 (total)

6 (chocolate chip) /24

25%

Answer:

25%

Step-by-step explanation:

10+8+6=24

so that means it is 25%

What is the dominan and range of the relation below? Answer using set notation.

Answers

Answer:

domain: -2 < x < 4

range: -3 < y < 1

You drive 132 miles in 3 hours. At
that speed, how many miles could you drive in 4 hours?

Answers

Answer:

You would divide 132 by 3 to get the unit rate of 44 mph. Then multiply by 4 to get 176 miles in 4 hours

Step-by-step explanation:

I forgot how to do this, can someone please help

Answers

Answer:

Solution given:

<R=<J=49°[ inscribed angle standing on a same Aaka equal in a circle]

<K=90°[inscribed is triangle on a semicircle is 90°]

now in triangle JKL

<J+<K+<L=180°[ sum of interior angles of a triangle is 180°]

49°+90°+<L=180°

<L=180°-49°-90°=41°

:.arcJK=41°

is your answer.

Answer:

Question:

Find the measure of the arc or angle indicated.

Solution:

In ∆LRK & ∆JKL,

∠KRL= ∠LJK = 49°

( inscribed angle standing on a same Aaka equal in a circle)

Now , In ∆JKL,

∠JKL = 90°

(angle suspended to the center of the circle =90°)

Now,

construction: A line segment OK joining the points O(center)& K

Since, OK&OJ are the radii of the same circle,

Hence, OK = OJ

.°. JKO = OJK = 49°

Now,

In ∆ JOK,

∠JKO +∠OJK+ ∠JOK = 180°

Angle sum property of a∆

∠JOK = 180°- (∠JKO +∠OJK)

∠JOK = 180°-(49°+49°)

∠JOK = 180°- 98°

∠JOK = 82°

Hence, 82° is your answer

[tex] \\ \\ [/tex]

Hope it helps

-------☆゚.・。゚ᵴɒƙυᴚᴀ_ƨȶäᴎ❀

PLEASE DON'T IGNORE (geometry)
Find X and arc KGH

Answers

Answer:

x = 21°

arc KGH = 228°

Step-by-step explanation:

The sum of the arcs = 360°

9x - 22° + 61° + 5x - 7° + 34° = 360°

combine like terms:

14x + 66° = 360°

subtract 66° from both sides of the equation:

14 x = 294°

x = 21°

arc KGH = 9(21°) - 22° + 61° = 228°

Find the missing height of the solid figure

Answers

9514 1404 393

Answer:

  5 in

Step-by-step explanation:

The figure's angles are presumed to be right angles everywhere, so the left-side vertical dimension is equal to the right-side vertical dimension.

The right side is marked as 15 inches.

The left side has two vertical segments, one of which is 10 inches. Since the total left-side height must be the same as the right-side height, we have ...

  10 in + ? = 15 in

  ? = 5 in . . . . . . subtract 10 in

The missing height is 5 inches.

please how do you solve 60cos25​

Answers

Answer:

60cos(25)=54.378467222199

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