Mathematics Middle School

The radius is 2.1. What is the area of this circle? Round your answer to the nearest tenth. Use 3.14 for pi.

Answers

Answer 1

Answer:

Hey!

The area would be 13.85

Step-by-step explanation:-

Area of a circle's equation is π[tex]r^{2}[/tex] (pi [tex]r^{2}[/tex])

Since the radius is 2.1 and value of pi is 3.14cm,

area is

[tex]2.1^{2}[/tex] x 3.14

4.41 x 3.14

= 13.85

Answer 2

The area of this circle is 13.6.

What is the area of the circle?

Area of a circle is the region occupied by the circle in a two-dimensional plane.

The area of the circle is;

[tex]\rm Area \ of \ circle=\pi r^2\\\\Where\ r =radius[/tex]

The radius is 2.1.

Substitute all the values in the formula

[tex]\rm Area \ of \ circle=\pi r^2\\\\ Area \ of \ circle=3.14 \times 2.1^2\\\\ Area \ of \ circle=13.6[/tex]

Hence, the area of this circle is 13.6.

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Related Questions

HELPP IM ALMOST DONE PLEASEEEE

Answers

The answer is AAAAAAAAAA

Answer:

number A

the template does not have the needed triangle for the other numvers

Please help me and only answer if you are 100% sure it is correct, it affects my grade. I will mark you brainly if you get it right. NO LINKS.

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Answer:

1256, 125.6 (this is wrong sorry i didn't know that it wasn't a full circle)

Step-by-step explanation:

A) The area that the sprinkler is spraying is in a circle with a radius of 20 ft. The formula to find the area of a circle is pi*r^2, so the area of this circle will be 400pi (substitute 20 for r). Pi in this problem is 3.14, so 400*3.14 is 1256 feet.

B) The perimeter of the spray is technically just the circumference of the circle. The circumference is 2r*pi, so we substitute 20 for r again and we get 40pi. Again, pi is 3.14 in this problem, so 40*3.14 is 125.6 feet.

Plz Help (' O_O ') i need it in a little bit but plz help me

Answers

Answer:

7 units i'm pretty sure.....

Step-by-step explanation:

Tell me if i'm wrong.

Answer:

If it's asking for the slope, it is -4/7.

Step-by-step explanation:

This is what my teacher would ask for. I don't really understand what it is asking. Hope this helps!

If the simple interest on a principal amount of $6000 for 7 years is $2,520, then what is the interest rate as a percent?

Answers

Answer:

Step-by-step explanation:

first multiply $6000 by 7 years then divide 2520 by 42000 to get 0.06

6% because interest= principal amount x rate x time / 100

So 2520=6000xRx7 / 100 = 6%

What is 4x + 10 = -26

Answers

Answer:

x = -9

Step-by-step explanation:

I'm assuming you're looking for X.

So first, you'll want to subtract 10 from both sides of the equation.

4x + 10 = -26

- 10 | -10

4x = -36

Then from there, you'll want to divide by 4. This allows us to get x by itself.

4x = -36

/4 | /4

x = -9

The value of 'x' is -9 in the given equation.

To solve the equation 4x + 10 = -26, follow these steps:

Step 1: Isolate the variable term by subtracting 10 from both sides of the equation.

4x + 10 - 10 = -26 - 10

4x = -36

Step 2: Solve for 'x' by dividing both sides of the equation by 4.

4x / 4 = -36 / 4

x = -9

So, the value of 'x' is -9.

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Need help ASAP................

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The answer is 45 because on the bottom there is a 105 and since the 30 degrees is equal with the one across from it you do 180-105-30 or 105+30 then 180-135

The right answer is 45

What is the value of x?

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90 I think I really could be wrong and if I am I am super sorry

I believe it’s 90. Not sure though.

please help i really need this

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Answer:

ok put me brainliest please

its 215$

Step-by-step explanation:

$215 is the answer

Hope it helps

Find the area of the composite polygon below if each square unit has a length of 1 unit.

A: 99 units

B: 56 units

C: 143 units

D: 127 units

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I think the answers A

I think the answer is A I’m pretty sure

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Answer:

1= 64 2= 16,536

Step-by-step explanation:

Answer:

It is 16m² because 8 x 2 = 16. And 78 x 212 = 16,536km² because base x height = area.

Step-by-step explanation:

Mrs.Calley has 20 pencils in each 5 box.
20x5=
This is for my lil sis dont let her down

Answers

Answer: This is simply 100

Please Help I Will Give You 5 Stars And Brainilest

The Options For The First Choose Box Are Yes/No

The Options For The Second Choose Box Are Side Lengths/Sides/Angles/Coordinates

The Options For The Third Choose Box Are Are/Are Not

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No, coordinates, are not

A barn floor scale drawing measures 5 cm by 7 cm. The scale for the actual barn is 2cm : 10 ft. What is the area of the barn? (WRITE THE NUMBER, ONLY)

Answers

Answer:

Step-by-step explanation:

Answer:

The answer is 875

Step-by-step explanation:

SO EASY- 2cm is equal to 10ft, so that means 5ft is equal to 1cm.

5*5=25

7*7=35

35*25=x=875

The floor plan for a house is shown.Vertical lengths and horizontal lengths are given.

A drawing shows the floor plan for a house. The house is composed of three rectangles. The first rectangle is twenty feet long and twenty-four feet wide. The second rectangle is twenty-four feet long and eight plus twenty-four plus eight feet wide. The third rectangle is twenty-eight feet long and twenty-four feet wide.

What is the floor area in square feet?

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I think 480 + 960 + 672 = 2112

John gave the cashier $10 to pay for 3 packs of blueberries. The cashier gave him $6.25 in change. Each pack has the same amount of blueberries.

What is the cost in dollars and cents for each pack of blueberry?

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Answer: $1.25 for each pack of blueberries

If the measure of \angle∠4 is 68 degrees,, find the measure of \angle2∠2 in degrees.

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Hi, there! I'd love to help you out!

We know complementary angles add up to 90 degrees.

Let's say our first angle is x:

x = first angle

It tells us the other angle is 68 degrees more. So we are just adding 68 to our other angle:

x = first angle

x + 68 = second angle

Now add the two and set it equal to 90 degrees:

x + x + 68 = 90

2x + 68 = 90

-68 -68

2x = 22

/2 /2

x = 11 first angle

x + 68 = 11 +68 = 79 degrees second angle

I hope this explanation helps you . (by the way is there a picture?)

Please help me this is due in 3 minutes

Answers

Answer:

Step-by-step explanation:

Answer:

my answer would be a

Step-by-step explanation:

a=2 /3=0.667

B=14/9=1 5/9 =1.556

c)=13/2 =6 1/2=6.5

d=5/ 8=0.625

PLEASE HELP ASAP!!!

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C is the answer have a great day

I NEED HELP ASAP PLEASE HELP ME!! NO LINKS OR I WILL REPORT

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Answer:

Step-by-step explanation:

5(6)-6/2

PLEASE HELP!!
Maria wants to solve the following system using the elimination method:

4x + 9y = 59
x + y = 17

What number should the equation x + y = 17 be multiplied by to eliminate y? (4 points)

A. 4
B. −4
C. 9
D. −9

Answers

Answer: D. -9

Step-by-step explanation:

Use the Distributive Property to simplify the expression.

6(s-9)

Answers

Answer: 6s-54

Step-by-step explanation:

6(s-9) - [simplify]

= (6)(s + -9)

= (6)(s)+(6)(-9)

= 6s-54

The simplified form of the given expression is 6s-54.

The given expression is 6(s-9).

What is Distributive Property?

It is used to solve expressions easily by distributing a number to the numbers given in brackets. That is, a(b+c)=ab+ac

Now, 6(s-9)=6×s-6×9

=6s-54

Hence, the simplified form of the given expression is 6s-54.

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Which expression is equivalent to 55 + 2x + 5? *
3 points
2(25 + x) + 5
30(2 + x)
60(1 + x)
2(30 + x)
HELP PLS

Answers

Answer:

2(30+x)

Step-by-step explanation:

[tex]55+2x+5\\=60+2x\\=2(x+30) or 2(30+x)[/tex]

Answer: 2 ( 30 + x )

please help thank you

Answers

Answer:

[tex]\frac{7}{22}[/tex], the total sum of the money is

Step-by-step explanation:

1- [tex]\frac{5}{11}[/tex]= [tex]\frac{6}{11}[/tex]

[tex]\frac{6}{11}[/tex]*[tex]\frac{7}{12}[/tex]= [tex]\frac{7}{22}[/tex]

x* [tex]\frac{7}{22}[/tex]= 4500

4500/[tex]\frac{7}{22}[/tex]= about 14142.85

this is what I got out.

PLEASE HELP PROBLEM IN PHOTO!

Answers

Answer: Should be 130

Step-by-step explanation:

A is 80 180-80 is 100. Since it’s an isosceles you can divide by 2 and the two angles would be the same. 100/2 is 50 because two remote interior angles is equal to the exterior angle, 50+80 is 130, d is 130

Answer:

Angle D is 130 degrees

Step-by-step explanation:

180-80=50

Angles b and c are the same and will both be 50 degrees.

The angle of a straight line is 180 degrees.

Since angle c is 50 degrees, then the other angle (d) will have to be 130, so that together the total of the two is 180 degrees.

I hope this helps :)

picture of the question below

Answers

6x6x10=360 you have to multiply all sides

To answer this you must split the shape into 2 other shapes at least this how I do it

First do the square 6x6=36
Then do the 2 triangles
3x10=30
(Normally you would divide the answer by 2 since a triangle is half of a square but since there is another triangle this is not needed)
After that add the area of the square to the area of the 2 triangles and your answer is 66

Help Me On One Of These Please!

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We need more information on the stuff before we can answer it

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Answers

Answer:

30 and 34

Step-by-step explanation:

The first one is 30

the second is 34

Answer=30

Explanationthe number 4 by 3 plus 3 equals 15

Therefore 2 ×15

Grades on a science test are shown in the box plot below.
Find the correct data that the box plot represents.

A) 78, 81, 89, 75, 76, 91, 100, 63, 80, 87, 91, 95

B) 55, 81, 89, 75, 76, 91, 100, 63, 80, 87, 91, 95

C) 78, 81, 45, 75, 76, 91, 100, 63, 80, 87, 91, 95

D) 78, 81, 89, 75, 76, 91, 100, 63, 80, 87, 91, 110

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I think the answer will be A

The answer for this question i think is a
Hope this helps!

if correct will receieve brainly

Answers

Area of triangle 1/2 b h

PLEASE ANSWER FOR BRAINLIEST

The transportation department is painting large arrows on some of the city’s one way streets. The dimensions of the arrows are shown below.

Answers

26x18= 468
19x8=152 you would divide by 2 when using a triangle but since there’s 2 triangles which make a rectangle that means you don’t have to so your answer is 468+152=620x15= 9,300 and don’t click on the link on the person above it’s a scam and you’ll just get a virus

Answer:

9300 inches squared

Step-by-step explanation: trust me :)

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