Find the area of a circle with a radius of 21 inches. Use
area: about
in.
22/7
for π.

Answers

Answer 1

Answer:

[tex]1386 in^2[/tex]

Circle Formulas

r: radius

Circumference:  [tex]2\pi r[/tex]

Area: [tex]\pi r^2\\[/tex]

In this case, we are using 22/7 as an estimation for pi.

Q)

Plug into the area formula.

22/7 * (21)^2

22/7 * 441

[tex]1386 in^2[/tex]


Related Questions

The price of an item has been reduced by 95% the original price was 87$

Answers

Answer:

Your answer

Price after reducing is 4.35$

Mark it as Brainlist. Follow me for more answer.

Step-by-step explanation:

Based on the side lengths alone, could the triangles be similar? 16.0 cm R 6.4 cm 3.0 cm 15.0 cm S T 6.0 cm X 7.5 cm U
No, the side are not proportional.
Yes, the sides are in the ratio 2:5.
yes, the sides are in the ratio 4:5.
Yes, the sides are in the ratio 1:5.​

Answers

Answer:

Yes, the sides are in the ration 2:5!

Step-by-step explanation:

Hope this helps.

Answer:

  The correct answer is B. Yes, the sides are in the ratio 2:5.

Step-by-step explanation:

Hope this helps, and have a wonderful day! :)

A cuboid with a square base of side length 6 cm and height 10 cm then its volume equal what in Sixth grade of primary school

Answers

Answer:

360

Step-by-step explanation:

Volume of cube is s^3

Volume of a rectangular prism is BH, OR LWH

Since the base is a SQUARE, and it has a side length of 6 cm, the other side length is also 6 cm. 6 x 6 x 10 = 360 cm cubed.

[tex]\frac{5}{6}x - 8=\frac{1}{3}(3x-15)[/tex]

Answers

Answer:

x= -18

Step-by-step explanation:

Solve for  

x

by simplifying both sides of the equation, then isolating the variable.

And they were roommates...
the answer is x=-18

Two balls are picked in succession without replacement -4 white balls and 5 green balls let Y be the random representing the number of green balls. Find the value of the random variable Y.

Answers

Answer:

If Y represents the number of green balls then it can have values from 0- 5

that is it can have all the value  0,1,2,3,4 and 5.

The probability of getting both balss green without replacement is 0.27778

Step-by-step explanation:

If the balls are not replaced then this is the dependent event .

The probability of getting the first ball is given be = 5/9

where 5 is the number of green balls and 9 is the total number of balls.

The probability of getting the second ball green given that first is also green is  = 5/9* 4/8= 20/72= 0.2778

If Y represents the number of green balls then it can have values from 0- 5

that is it can have all the value  0,1,2,3,4 and 5.

0 means there can be no green balls or white balls.

1 means there can be one green ball.

2 means there can be 2 green balls and so on.

In this exercise we have to use the knowledge of probability to calculate the chance of an event to occur, so you have to:

the chance of the event is 0.2778%

So organizing the information given in the statement is:

If the balls are not replaced then this is the dependent event .The probability of getting the first ball is given be = 5/95 is the number of green balls and 9 is the total number of balls.

So with this information we can write that:

[tex]5/9* 4/8= 20/72= 0.2778[/tex]

See more about probability at brainly.com/question/795909

Find an equation for line L, M, N, and P *

Answers

can you include an photo of the problem?

Amy buys 8 sandwiches and 12 waters.her total cost is 8s+12 how much did she pay

Answers

is there another part?

PLS HELP!!

Solve for an angle in right triangles

B = ???

round your answer to the nearest hundredth

Answers

Answer:

100

Step-by-step explanation:

Ok, I tried my best.
But it’s wrong

Triangle B C D is shrunk to form triangle B prime C prime D prime.
Identify the type of transformation that maps triangle BCD onto triangle B’C’D’.

The transformation is a

Answers

Answer:

dilation.

Step-by-step explanation:

Answer:

dilation

Step-by-step explanation:

What is the slope of the line that passes through the points (−6,−4) and (-12, -4) ?

Answers

Answer:

0

Step-by-step explanation:

The formula for slope is [ y2-y1/x2-x1 ].

-4-(-4)/-12-(-6)

0/-6

Since the numerator is 0, the slope is 0.

Best of Luck!

Sam complete 3 math problems in 8 minutes. How long will it take to do 15 problems?

Answers

Answer:

40 minutes

Step-by-step explanation:

 Math Problems                   3              15

 ----------------------                  -----     =    ------

       Minutes                          8              x

                                             3x = 15 * 8

                                               x = 15 * 8 / 3

                                               x = 120 / 3

                                               x = 40

                                                  40 Minutes

At a sale, coats were sold for 82% of their original price. If the coats originally cost $200 each, how much did a coat cost on sale?

Answers

164

Step-by-step explanation:

The solution is,  a coat cost on sale =  $164.

What is percentage?

A percentage is a number or ratio that can be expressed as a fraction of 100. A percentage is a number or ratio expressed as a fraction of 100. It is often denoted using the percent sign, "%", although the abbreviations "pct.", "pct" and sometimes "pc" are also used. A percentage is a dimensionless number; it has no unit of measurement.

here, we have,

At a sale, coats were sold for 82% of their original price.

If the coats originally cost $200 each,

so, a coat cost on sale = $200* 82%

                                     =$164

Hence, The solution is,  a coat cost on sale =  $164.

To learn more on percentage click:

brainly.com/question/13450942

#SPJ6

what is the square root of 4.84

Answers

Answer:

2.2. Hope it helps :D

2.2, sorry if i’m wrong

16/5 where is that on the number line?

Answers

First you have to make 16/5 3 1/16 (5 goes into 16 3 times and 1 left over) so it would go on 3 and 1 16

Use | = PRT to solve.
(time is in years)
P = $1,200
I = $99
T= .75 years
Find R.


Can someone help? :)

Answers

Answer:

Step-by-step explanation:

PRT = I

R = I/PT

R = 99/(1200)(.75)

R = 99/900

R = 11%

Hi,

So the answer is 11%

if 6n = 0, what does n equal?

Answers

Answer:

6n=0

n=0/6

n=0

hope it helps.

Answer:

n=0

Step-by-step explanation:

6n  is the same of 6×n

∴ 6×0 = 0

5. I NEED HELP ASAP!! PLEASE PUT AND ANSWER AND STEP BY STEP EQUATION!! IF YOU DON'T KNOW THE ANSWER DON'T PUT ANYTHING!!

Write a rule for the linear function in the table.


X F(x)

0 3

3 15

6 27

9 39


A. f (x) = 1/4x + 3

B. f (x) = 4x + 3

C. f (x) = x + 3

D. f (x) = -4x - 3

Answers

Answer:

i can't find the answer

Step-by-step explanation:

Find the slope please!!

Answers

Answer:

Slope = 2

Step-by-step explanation:

Do rise/run, this one rises up 2 and the run is 1 and 2/1 is 1. Rise/run is usually only necessary for small numbers.

hii please help i’ll give brainliest if you give a correct answer!

Answers

Answer:

8 and 1/4 cups sugar is your answer. In 5 and 1/3 cups is 8 and 1/4 cups sugar.

Step-by-step explanation:

Brainly please hope this is correct please tell me if I wrong.

HELP AND WILL GIVE BRAINLIEST!!! Solve for x for the image below

Answers

Answer:

umm x=30

Step-by-step explanation:

Answer:

x=22

Step-by-step explanation:

All angles in a triangle add up to 180 degree.

180-(6x-7) = the supplementary angle inside the upper left corner.

180-(6x-7)+2x+(103-x) = 180

180-6x+7+2x+103-x = 180

reduce

-5x = -110

-5x/-5 = -110/-5

x=22

you can check by using the values of x

Which of the following coordinate pairs make the equation x-9y=12 true? A (3,-1) B (0,-4/3) C (0,12) D (12,0) (There are multible answers.)

Answers

Answer:

Burun yardımı lazım ders programlı

Step-by-step explanation:

Lise pitirdim üventisiyi bitirdim

14. A right cone has a height of 14 in and a base diameter of 17 in.
a Sketch and label a diagram of the cone
b. Determine the area of the lateral surface of the cone, to the nearest square inch​

Answers

Given:

The height of a right cone = 14 in

Base diameter = 17 in

To find:

The diagram of the cone and its lateral surface area.

Solution:

(a)

The diagram of a right cone with height 14 in and base diameter of 17 in is shown below.

Diagram is not to scale.

(b)

We know that lateral surface of the cone is

[tex]A=\pi rl[/tex]

[tex]A=\pi r\sqrt{r^2+h^2}[/tex]              ...(i)

Where, r is the base radius, h is vertical height and l is the slant height of the cone.

Base radius of the cone = [tex]\dfrac{\text{Base diameter}}{2}[/tex]

[tex]r=\dfrac{17}{2}[/tex]

[tex]r=8.5[/tex]

Now,

Putting r=8.5, h=14 and π=3.14 in (i), we get

[tex]A=(3.14)(8.5)\sqrt{(8.5)^2+(14)^2}[/tex]

[tex]A=26.69\sqrt{72.25+196}[/tex]

[tex]A=26.69\sqrt{268.25}[/tex]

[tex]A=437.1379[/tex]

[tex]A\approx 437[/tex]

Therefore, the lateral surface area of the cone is 437 sq. inches.

(5×100)+(6×110)+(7×1100)
What is this number in standard form?

Answers

(28-92)+8-29 minutes of friends

(5×100)+(6×110)+(7×1100)=500+660+7700=8860

angle (the question mark), (Write the
number only)
?
77
124°

Answers

47. my answer needs to be at least 20 characters long there u go

Answer:

49

Step-by-step explanation:

77+49 = 124

Hello! It would help a lot if I had assistance with this question:

Answers

Answer:

Simplest form

simplest form is the correct answer

5/16 + 7/16 (simpfiy it )

Answers

It’s 12/16 which simplify to 3/4
Answer:3/4Step-by-step explanation:5 + 7 = 1212/16 Divide by 412 ÷ 4 = 316 ÷ 4 = 4Final Answer = 3/4Hope this helps!!♥︎

At the zoo, the ratio of birds to snakes is 2:3. If there
are 12 snakes at the zoo, how many birds are there?
Show your work! Type your final answer in the box
below.
Submit

Answers

Answer:

8 birds

Step-by-step explanation:

Birds to snakes is 2:3. So, then it would be 4:6, 6:9, 8:12 if you use a table.

Answer:

U need to slove the same way as shown above just change the number and solve if still u find any difficulty. then u can follow me I will surely help u out

All The Best

what is the precent of change from 12 to 19

Answers

Answer:

158%

Step-by-step explanation:

19/12 = 1.58

Given the sequence 24, 12, 6, 3......., where x = 1, 2, 3, 4, .........What is the first term? 24 12 6 3

Answers

Answer:

24

Step-by-step explanation:

The first term of any sequence is the term of the sequence that comes first.

Given the sequence of numbers 24, 12, 6, 3...

We can see that the number that comes first is 24. Hence the first term of the given sequence will be 24

Но
How much does each bead necklace cost?
You can buy a 35-pound box of beads for $43.95.
A 35-pound box of beads contains 30 bags of 12
necklaces each.
Step 1: How many necklaces are in a box?

Answers

360 because you would do 30 bags x 12 necklaces

B, the correct answer is B

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