Mathematics Middle School

Circles - Radius, Diameter, Area and Circumference

Answers

Answer 1

176.71
Explanation: formula of a circle
A= pi r ^2

Answer 2

176.71 is the answer

Related Questions

PLEASE HELP ME QUICK DUDES!!

Answers

Answer:

See graph attached

Step-by-step explanation:

What are the coordinates of the vertices of a rectangle with an perimeter of 12 units and an area of 5 sq. units.

Answers

Answer: The perimeter of the rectangle is: P = 2( w + L) = 2 ( 8+5) = 26 units

The area of the rectangle is A = L w, A = 8 x 5 = 40 units to the 2nd power

Step-by-step explanation:

In order to solve this problem you need to find the distances between the vertices. By inspection the points (5,3) and (5,-2) form one the of the rectangle w = √ ( 5-5)2 + ( -2-3)2 = 5

The length can be obtained by finding distance between the points (5,3) and ( -3,3),

L = √(3-3)2+(-3-5)2 = 8

= 26 units

The perimeter of the rectangle is: P = 2( w + L) = 2 ( 8+5) = 26 units

The rectangle is the quadrilateral with 4 right angles. It could also be defined as, an equiangular quadrilateral, since equiangular means that the all of this angles are = (360°/4 = 90°); and the parallelogram containing a right angle. A rectangle with 4 sides of equal length is a square. The term oblong is occasionally used to refer to a non square rectangle.

The area of rectangle is A = L w, A = 8 x 5 = 40 units to the 2nd power

In order to solve this question you want to find the distances between the vertices. By inspection the points (5,3) and (5,-2) form 1 the of the rectangle w = √ ( 5-5)2 + ( -2-3)2 = 5

The length can be obtained by finding distance between the points (5,3) and ( -3,3),

L = √(3-3)2+(-3-5)2 = 8

The perimeter of rectangle is: P = 2( w + L) = 2 ( 8+5) = 26 units

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Plz help no links
You work on a problem calculating either area or volume. Your answer is 210 ft3. Did you work on an area or volume problem?

Answers

Answer:

You work on finding volume.

Step-by-step explanation:

Area is squared so it would be something like 210 ft. squared or 210 ft.^2. But since this is area, and it is cubed, it is 210 ft. ^3. You worked on volume.

Solve for brainliest
3x + 2y = -13
3x + 4y = 1

Answers

Answer:

x=-4

y=3

Step-by-step explanation:

3x=-1

x=-4

-4y=-1

y=3

Hope helps you :3

Answer:

Point form: (-9,7)

Equation form: x=-9, y=7

Step-by-step explanation:

8) find the volume of a prism

Answers

Answer:

I may be wrong but A

Step-by-step explanation:

The sum of present ages of John and his father is 58 years. If John is 24 years younger than his father, then find the present age of John’s father.

Answers

Answer:

father is 41

Step-by-step explanation:

J = johns age

f = fathers age

j+f = 58

j = f-24

Substitute the second equation into the first

f-24 +f = 58

2f -24= 58

Add 24 to each side

2f = 58+24

2f =82

f = 82/2

f = 41

Use the net to find the surface area of the square pyramid.
A)385ft2
B)473ft2
C)526ft2
D)568ft2

Answers

483. Find the area of the square, then add the area of all the triangles

the answer is B)473ft2

The dot plot shows the weekly biking times (in hours). What are the most appropriate measures to describe the center and variation? Find the measures you chose. Round to the nearest tenth, if necessary.

The distribution is
symmetric
. So, the
is the most appropriate measure to describe the center, and the
mean absolute deviation
is the most appropriate measure to describe the variation.

The measure of center of the data is
hours.

The measure of variation of the data is
hours.

Answers

…………….. link available nowwwww

The measure of the variation of the data is 2.2 hours.

How to calculate the mean average deviation?

The dot plot shows the weekly biking times (in hours). To describe the center, the most appropriate measure is the median, since the distribution appears to be roughly symmetric.

To find the median, we arrange the data in order from smallest to largest:

2, 4, 4, 5, 6, 7, 8, 8, 9, 10

There are 10 data points, so the median is the average of the fifth and sixth values:

median = (5 + 6) / 2 = 5.5

So, the measure of the center of the data is 5.5 hours.

To describe the variation, the most appropriate measure is the mean absolute deviation (MAD), which measures the average distance of each data point from the median.

To calculate the MAD, we first find the deviations of each data point from the median:

|2 - 5.5| = 3.5

|4 - 5.5| = 1.5

|5 - 5.5| = 0.5

|6 - 5.5| = 0.5

|7 - 5.5| = 1.5

|8 - 5.5| = 2.5

|9 - 5.5| = 3.5

|10 - 5.5| = 4.5

Next, we find the average of these deviations:

MAD = (3.5 + 1.5 + 1.5 + 0.5 + 0.5 + 1.5 + 2.5 + 2.5 + 3.5 + 4.5) / 10

MAD = 2.2

So, the measure of the variation of the data is 2.2 hours (rounded to the nearest tenth).

To know more about the mean average deviation follow

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A school typically sells 500 yearbooks . . .

Answers

a = 100 and i’m not exactly sure what b equals (i’m new to this so i’m sorry if my answer was un-necessary)

alright one more question
whoever can answer this and the next question wins brainliest

Answers

Answer:

1.2 miles

Step-by-step explanation:

2/3 of 1 4/5 is 1.2

The base of a right rectangular prism is 20 cm2. If the height of the prism is 9.2cm, what is its volume?

Answers

Answer:52.4 because the rectangular prism

Step-by-step explanation:

BRAINLIEST if correct

4

Answers

Answer:

Yes it is biased

Step-by-step explanation:

It shows favoritism

Answer:

False

Explanation:

STEP BY STEP PLS.
Which choice describes the value of m when
-5(m + 1) = < 23

A. m > -28/5

B. m < -28/5

С. m > -18/5

D. m < -18/5

Answers

Answer:

Step-by-step explanation:

-5m + 1 < 23

- 1 -1

-5m < 22 (divide both sides by -5)

answer: -4.4

Help solve will give brainliest

Answers

The correct answer is B. 7.8

Answer:

Step-by-step explanation:

brainliest

What is the circumference of a circle that has a radius of 5in.? (Use 3.14 for pi, round to your nearest hundredth if necessary

Answers

Answer: C≈31.42

HOPE THIS HELPS

I need help with math pls

Answers

Approach zero is the answer took it 5 years ago

Help asapppp I’ll give brainliest

Answers

Answer:

1. .002

2. .01

3. .10

4. .2

Answer:

Starting with least- 1: 0.002 2: 0.01 3: 0.2 4: 0.10

Step-by-step explanation:

If I'm wrong I'm sorry.

What are the coordinates of the vertices of a rectangle with an perimeter of 12 units and an area of 5 sq. units.

Answers

I believe it is 12 minus 3

ion but u wanna wut I think? I think its a rectangle on a coordinate line

You work on a problem calculating either area or volume. Your answer is 210 ft3. Did you work on an area or volume problem?

Answers

Answer:

Volume

Step-by-step explanation:

ft^3 is cubic foot. Cubic foot is used for volume of a cube

please help if the answer is correct I will give you brain last only smart people please. this anser will make me pas or fail

Answers

retake the screen shot so i can see it

some pls answer this and pls answer only if u know

Answers

Problem 1

i = P*r*t

i = 8000*0.04*5

i = 1600 is the amount of simple interest

Answer: 1600

==========================================

Problem 2

B = P + i

B = 8000 + 1600

B = 9600

Another way to get this value is to compute P*(1+rt)

Answer: 9600

If I average a speed of 60 miles per hour while driving, how many hours of driving time will it take me to reach Arizona?

Answers

Answer:

Well where do you start

Step-by-step explanation:

The answer will be 1 1/2 hours

The lines that are shown in this illustration is a representation of what kind of lines?
A. parallel lines
B. intersecting lines
C. skew lines
D. perpendicular lines

Answers

A parallel lines because they are even

Parallel line ;) plz mark as Brainliest

pls help no links pls

Answers

The answer for that question is D I hoped it helped!

The sweet to this question is D

Help I'll give brainliest

An ice cream shop sells plush replicas ice cream cones with the dimensions shown. The ice cream cones are filled with a polyester fiber stuffing. Each bag of the fiber stuffing can be used to fill 720 cubic inches of volume. If the manager of the store orders 125 of the replica cones, how many bags to fill the cones?

(SHOW WORK)

Answers

Answer:

100 po

Step-by-step explanation:

Hope it help

sorry if i wrong

spread love❤️

STEP BY STEP PLS
A teacher divided the class into two groups of equal size.
▪︎3/5 of the first group are right-handed.
▪︎80% of the second group are right-handed.
What fraction of the class is right-handed?
А. 8/9

B.4/5

C.7/10

D.5/7

Answers

C ( To make things simple, let's turn 80% into a fraction, 8/10. To get a common denominator let's turn 8/10 into 4/5. Since they are both of equal size, the first group would have 2/5 left-handed people and the second 1/5 left-handed people. Let's imagine that each group has 5 people in it. There would be 10 people in total. There is 1 person for each fifth so we can add now. 4 + 3 = 7 right handed people. To check, 2 + 1 = 3 and 3 + 7 = 10. so 7/10 of the class is right-handed. )

The graph shows a line of best fit because the points are plotted evenly above and below the line.
The graph shows a line of best fit because there is a straight line.
The graph shows a line of best fit because the association is zero.
The graph shows a line of best fit because the points fit around the line.

Answers

it should be A: the points are plotted evenly above and below

BRAINLIEST if correct

2

Answers

The correct answer is true!

Answer:

False

Step-by-step explanation:

I think it is false

Debbie did a survey of how many states the members of her class had visited. The
results were: 10, 15, 23, 2, 21, 31, 14, 10, 8, 17, 11, 19, 8, 42, 15, 22, 6, 34, 19,3, 24.
What is the five-number summary for this set of data
please actually help

Answers

Answer:

Step-by-step explanation:

Carlos has equal numbers of classical songs, country
songs, and pop songs loaded on his personal music player.
He has it set to play songs on a random shuffle. Suppose
Carlos is designing a simulation that could be used to
estimate the probability that the next three songs to play
are all country songs.
Which simulation design could Carlos use to estimate the probability?

Answers

Answer:

the answer is D random digits

Answer:

Step-by-step explanation:

Have a good day :))

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