Mathematics High School

A circle has radius 40 cm. Which of these is closest to its area, in square centimeters?

Answers

Answer 1

Answer:

251 cm2

Step-by-step explanation:

Answer 2

The area of the circle whose radius is 40 cm is 5026 cm².

What is a circle?

A circle is a curve sketched out by a point moving in a plane so that its distance from a given point is constant; alternatively, it is the shape formed by all points in a plane that are at a set distance from a given point, the centre.

Given that the radius of the circle is 40cm. Therefore, the area of the circle will be,

Area of the circle = π × Radius²

                             = π× (40cm)²

                             = 1600π cm²

                             = 5026.54 cm²≈ 5026 cm²

Hence, the area of the circle is 5026 cm².

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Related Questions

What is the slope of the line?

1
1/2
-2
2​

Answers

Answer:

2

Step-by-step explanation:

The slope of the line is 2. The slope is rise over run, or change in y over change in x. So to find the slope count how much each value changes, in this graph y changes +2 and x changes +1. So the slope is 2/1 or just 2. One way to visually check the slope is to remember fraction slopes will make the line flatter and other whole numbers make the line steeper.

Does the following mapping diagram represent a function?

A. Yes
B. No.
C. Not enough information

Answers

Answer:

yes

Step-by-step explanation:

If the measure of <6 = 59° then the measure of <4 = what

Answers

Answer:

I think it is 39.3 recurring

Step-by-step explanation:

not 100% sure

Answer:

39.33 I hope it will help you

Does the point (3,9) satisfy the inequality y<_2x + 2?
yes
no
Submit

Answers

Yes because 3 is less than or equal to 20
Answer: yes


Hope this helped have a great day

Choose the expression that is equivalent to both −xy and x−y.
xy
−(−xy)
−1(xy)
−x−y

Answers

Answer: -1(xy) exact value = -xy  

rewrite -1(xy) as -(xy)

Step-by-step explanation:

Answer:

-1(xy)

Step-by-step explanation:

Maria had 20 dollar gift card to an online music store. She spent the entire amount on songs which cost 1 dollar each and the music videos which cost 2 dollars each Maria bought five more songs than music videos. Write down the system of equations to represent the situation

Answers

~1$ each
~2$ for video
~5more songs than videos
20$-5$=15/2/19

10) f(x) =
x²+x
X+1
A. 0
B. 00
C.
D. 1

Answers

Answer:

Александр здравствуйте Я хочу предложить сотрудничество по сотрудничеству

David runs on a track that is 1/4 mile long he completes it in 1/20 of an hour
what is David's running speed?

a. 5ml/h

b. 1/80ml/h​

Answers

Answer:

5mile per hour

Step-by-step explanation:

Step one:

given data

distance= 1/4mile

time taken= 1/20 hour

Step two:

Required

speed

we know that speed is

speed= distance/time

substituting

speed= 1/4/1/20

speed=1/4*20/1

speeed=20/4

speed=5mile/hour

The option a sis correct, the speed is 5mile per hour

Pls hlep I got the answer wrong last time so pls help pls quick quick reply pls h(×)=×-11 h( )=-5 Kan academy btw pls quick answers ✋ pls ❤️❤️❤️

Answers

Answer:

6-11

Step-by-step explanation:

pls answer I gibe brainliest

Answers

Answer:

first box: 518.4

second box:0

Step-by-step explanation:

 19.2

*  27

-------

518.4

+     0

---------

518.4

Hope This Helps!!

God Bless!!

~DuffyDuck~

If P is the incenter of JKL, find each measure

Answers

Answer:

see below

Step-by-step explanation:

angle JP = (180 - 32 - 90) + (180 - 22 - 90)

              = 58 + 68

              = 126°

angle JKP = (360 - JMP - JLP - LNP)/2

                 = 360 - (180 - 32 - 90) - 126 - (180 - 22 - 90)

                                                     2

                  = 360 - 58 - 126 - 68

                                    2

                  = 54°

MP = 7

KN = 10

JP = 11 / cos(32)

    = 13

PL = 17 / cos(22)

    = 18.3

               

           

Give the first 4 terms of a sequence who has the explicit formula an = 4n – 13

Answers

Step-by-step explanation:

from,

An = 4n -13

A1 = 4 (1) - 13

> A1 = -9

A2 = 4(2) - 13

> A2 = -5

A3 = 4(3) - 13

> A3 = -1

A4 = 4(4) - 13

> A4 = 3

Simplify the following expression.


A.
76
B.
68
C.
-20
D.
20

Answers

Answer:

c

Step-by-step explanation:

A 2-column table with 5 rows. Column 1 has entries Approximate Value, Exact Value, Absolute error, Ratio, Percent error. Column 2 has entries a, b, c, d, e. A survey indicates that there are approximately 120 dairy farms in a given area. If there are exactly 400 farms, and exactly 20% of them are dairy farms, what is the percent error? Fill in the table below.

Answers

Answer:

a = 120

b = 80

c = 40

d = 0.5

e = 50%

Step-by-step explanation:

Did it on Edge 2020! have fun

Answer:

a = 120

b = 80

c = 40

d = 0.5

e = 50%

Step-by-step explanation:

got it fully correct on Edge 2021 :]

Graph the following equation.
y + 2 = -2/3(x-4)

Answers

just go on desmos.com

URGENT I NEED THIS ASAP ILL GIVE BRAINLEST TO THE FIRST PERSON WHO ANSWERS

Answers

Answer: Constant rate of change linear

Step-by-step explanation:

Which linear inequality is represented by the graph? O y> 2x + 2
O yzx+1
O y > 2x + 1
O y=x+2​

Answers

Answer:

y > 2x + 1

Step-by-step explanation:

1 is the y-intercept

The slope is 2/1 (aka 2)

acob wanted to buy some ice cream, but did not know what flavor to get so he asked Caitlyn to pick for him. The shop has 4 flavors (Chocolate, Vanilla, Strawberry, and Mint) each flavor can be put in a cone, the shop has 3 types of ice cream cones (cake, waffle, and sugar) What is the probability that Caitlyn picks a Vanilla ice cream with a suger come

Answers

Answer:

1/12 or 1/24 sorry

Step-by-step explanation:

3types * 4 flavors

Mike filled 3 bags of leaves in 28 minutes. After raking leaves he counted 20 and a half bags of leaves. How many minutes did he take to fill all of the full bags?

help
asp please explain!​

Answers

it should be around 186.66 :)

Ayo what this?????????????? My teacher tripping

Answers

He/she really tripping but maybe try simplifying them ?

9. Jane's family divided up their garden so that 2/3 of the garden will have vegetables. Jane and her sister will plant 2/3 of the vegetable portion of the garden. How much of the family garden will Jane and her sister plant?

Answers

Answer:

1/3

Step-by-step explanation:

Jane and her sister planted vegetables in 4/9 portion of the family garden.

What is a fraction?

A fraction is written in the form of p/q, where q ≠ 0.

Fractions are of two types they are proper fractions in which the numerator is smaller than the denominator and improper fractions where the numerator is greater than the denominator.

Given, Jane's family divided up their garden so that 2/3 of the garden will have vegetables.

Now, In that 2/3 portion, they planted 2/3 of that portion.

Therefore, The portion of the family garden will Jane and her sister plant is,

= (2/3)×(2/3).

= 4/9.

So, Jane and her sister planted 4/9 portion.

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Find two consecutive whole numbers that
80 lies between.

Answers

Answer:

9 and 8

Step-by-step explanation:

It is 9 and 8 since 9^2 is 81 and 8^2 is 64 and they are the powers that 80 lies between.

Is this positive, negative, none or you cannot tell. Will mark CORRECT brainliest

Answers

Answer:

Positive correlation if right. Atleast consider brainlist:)

Step-by-step explanation:

Answer: Positive

Step-by-step explanation: It goes up over time instead of down, so it's positive.

If f(x) = 3(x+5) + 4/x, what is f(a + 2)?
A. 3(a + 2) + 4/a +2
B. 3(f(a)+5)+ 4/f(a)+2
C. 3(a + 7) + 4/a+2

Answers

Answer:

C. 3(a+7) + 4/a+2

Step-by-step explanation:

f(x) = 3(x+5) + 4/x

f(a+2) = 3(a+2+5) + 4 /(a+2)

= 3(a+7) + 4/a+2

What is the reflection of the reflection of a pentagon?

Answers

When you reflect the regular pentagon below across line the pentagon will look exactly the same. Without labeled points, it will be impossible to tell the difference between the original pentagon and its image. This means that the pentagon has reflection symmetry. :)

Someone know how to do this Im very confusing about how to do it

Answers

it would be e, because it went down 10 instead of 5

The scale of a map uses 10 cm for 30 km.
How many centimeters does it use for 9 km?
+

Answers

Answer:

3 km

Step-by-step explanation:

30 divided by 10 is 3.

9 divided by 3 is 3.

Therefore, your answer is 3.

Can someone please help with this as soon as possible? Thanks

Answers

Answer:

60

Step-by-step explanation:

can someone please help.

Answers

Answer: part A: every month jim deposits $20, so every month his total balance will increase by 20$ starting from $150

Part B: The pattern is 1x for every 9y

Step-by-step explanation:

The X-coordinate is zero and the y-coordinate is negative what is the location please help!!

Answers

0 hope this helps u ok
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