Using π = 3.14, find the area of a circle with a radius of 7. Round your answer to the nearest hundredth

Answers

Answer 1

Answer:

The formula for calculating the circumference (C) of a circle, C = πD or C = 2πR, is simple if you know the circle's diameter (D) or radius (R). But what do you do if you only know the circle's area? Like many things in math, there are multiple solutions to this problem. The formula C = 2√πA is designed to find a circle's circumference using the area (A). Alternatively, you can solve the equation A = πR2 in reverse to find R, then plug R into the circumference equation. Both equations provide the same result.

Step-by-step explanation:

The formula for calculating the circumference (C) of a circle, C = πD or C = 2πR, is simple if you know the circle's diameter (D) or radius (R). But what do you do if you only know the circle's area? Like many things in math, there are multiple solutions to this problem. The formula C = 2√πA is designed to find a circle's circumference using the area (A). Alternatively, you can solve the equation A = πR2 in reverse to find R, then plug R into the circumference equation. Both equations provide the same result.


Related Questions

2x - 3y = 9

-5x -3y = 30

x = y =

Answers

Answer:

is 50

Step-by-step explanation:

..

Answer:

50 mgghh*gffh CD d yuh hgcft

Mallory bought 6.2 yards of fabric. How many feet of fabric did she buy? (1 yard= 3 feet) ​

Answers

Multiply total yards by 3

6.2 yards x 3 = 18.6 feet

Answer:

18.6 , if wrong correct me

Step-by-step explanation:

Apply Newton’s method to estimate the solution of x3 − x − 1 = 0 by taking x1 = 1 and finding the least n such that xn and xn + 1 agree to three digits after the decimal point.

Answers

Solution :

Given

[tex]$f(x)=x^3-x-1, x_1=1$[/tex]

[tex]$f'(x)=3x^2-1$[/tex]

Let the initial approximation is [tex]$x_1 =1$[/tex]

So by Newton's method, we get

[tex]$x_{n+1}=x_n-\frac{f(x_n)}{f'(x_n)},n=1,2,...$[/tex]

[tex]$x_2=x_1-\frac{f(x_1)}{f'(x_1)}=1-\frac{1^3-1-1}{3(1)^2-1}=1.5$[/tex]

[tex]$x_3=1.5-\frac{(1.5)^3-1.5-1}{3(1.5)^2-1}=1.34782608$[/tex]

[tex]$x_4=1.34782608-\frac{(1.34782608)^3-1.34782608-1}{3(1.34782608)^2-1}=1.32520039$[/tex]

[tex]$x_5=1.32520039-\frac{(1.32520039)^3-1.32520039-1}{3(1.32520039)^2-1}=1.32471817$[/tex]

[tex]$x_6=1.32471817-\frac{(1.32471817)^3-1.32471817-1}{3(1.32471817)^2-1}=1.32471795$[/tex]

[tex]$x_5 \approx x_6$[/tex] are identical up to eight decimal places.

The approximate real root is x ≈ 1.32471795

∴ x = 1.32471795

HELP IM TIME
George is comparing two different phones. The screen of phone A has a width of 5.3 cm. The width of the screen on phone B is 5 and one-third cm. Which statement explains which phone has the wider screen?

Answers

Explanation:
We already have phone A 5.3 cm
We just need to find phone B

First we need to find what one-third is as a decimal

Which is 0.3

Now add 0.3 to 5

0.3 + 5 = 5.3

Answer: neither phone a and Phone be 05.3 cm

Answer:

Screen B is wider, because 5 and one-third is greater than 5.3..

Step-by-step explanation:

Got it correct on edge

Four time the sum of twice a number and six is thirty-two find the number

Help please (:

Answers

Answer:

yes the answer is 8.

Step-by-step explanation:

What is the factored form of 343 + x^6?
A.(7 - x)(49 + 7x + x^2)
B.(7 + x)(49 – 7x + x^2)
C.(7 - x)(49 + 7x^2 + x^4)
D. (7+ x2)(49 - 7x^2 + x^4)

Answers

D is correct :D

Tell me if I got it wrong :l

There are 24 hours in a day and scientists tell us that we should sleep for 3/8 of the day how much time should we spend sleeping?

Answers

Answer:

9

Step-by-step explanation:

3/8 × 24

= 3 × 3

= 9

9 Hours

i need help with this ^

Answers

Answer:

S=6°

Step-by-step explanation:

[tex]4s +12 + 20s - 7 + 7s - 11 = 180 \\ 31s - 6 = 180 \\ 31s = 186 \\ s = 6[/tex]

What is common monomial factor of 10x2+10?

Answers

Answer:

10

Step-by-step explanation :

 10x2+10

=10(2x+1)

Factor 10 out of 10x2 +10.
10 (x2 +1)

It says choose all of the multiple choice answers that are true about the diagram

Answers

Answer:

C. and E.

Step-by-step explanation:

Complimentary angles are two angles that both measures create the same degree as a right angle, or 90 degrees

Looking at the graph, we see 1 right angle, which is 9. Therefore we can cross out any answer that includes <9 in it.

Let's look at 7, this is an obtuse angle, WAY more than 90 degrees, therefore we can cross out any answer that includes <7 in it.

Meaning we only have three exceptable degrees, <6, <5, and <8.

There are only 2 answers that follow these rules. C and E

Find the x-intercept of 4x−2y=8

Answers

Answer:

(2,0)

Step-by-step explanation:

Shipping rates for Company A and Company B are shown in the tables below. Which company has shipping rates that you can represent using an equation of the form y = kx?

Answers

Answer:

OMG I KNOW THE ANSWER!!!!!!!!

Step-by-step explanation:

its b.

Answer:

company b

Step-by-step explanation:

Emily is entering a bicycle race for charity. Her mother pledges $0.30 for every 0.5 miles she bikes. If Emily bikes 8 miles, how much will her mother donate?

Answers

Answer:

4.80

Step-by-step explanation:

Answer:

Her mother will donate $4.80

Step-by-step explanation:

Divide the number of miles she rode by 0.5 miles. Then multiply it by $0.30.

What is the
y-intercept?

Answers

Answer:

8

Step-by-step explanation:

i'm very smart and x=0 is the y intecept so

pls help with this problem​

Answers

Answer:

HOPE IT WILL HELP YOU

Step-by-step explanation:

ans

313308

is (-1,5), (-2,6), (-3,7) a function

Answers

no!!!!!!!!!!!!!!!!!!!!!!!!!!!!!

A polar bear needs to eat at least 20 pounds of food each day. The zoo feeds the polar bear using canisters that each contain 2 pounds of food. The polar bear has already consumed 12 pounds of food. How many more canisters x of food does the polar bear need to eat? Write your answer as an inequality.

Answers

Answer:

34

Step-by-step explanation:

Answer:

x= (20-12)/2

Step-by-step explanation:

What is n+2<6 please I need this very much.

XC

Answers

Answer:

n<4

Step-by-step explanation:

n+2<6

Subtract 2 on both side

n+2<6

 -2  -2

n<4

What is the exact value of sin165° ?

Answers

I think the answer is D
The correct answer is “D”!

https://brainly.com/question/add?entry=1642&task_content=MS.+Donaldson+earn+%2418.80+for+the+first+40+hours+she+work+I+a+week+she+earns+1+y+medio+times+amount+per+hour+for+each+hour+beyond+40+hours+in+a+week+last+week+Ms.+Donaldson+worked+45.5+hours+how+much+money+did+she+earn

Answers

I have no clue what u just said , my eyes hurt I can’t read this sorry
What is this???The heck dude

What is 90% of 1,000,000?

Answers

you're welcome, and I hope this helps

Which inequality represents all the values of x for 46 < -6( x − 18) ?

Answers

Answer:

69

Step-by-step explanation:

because it is jjujujujujuj

YOU GET 50 POINTS IF YOU ANSWER THIS , The map shows the location of four places in a school. A coordinate plane is shown. There is a point at 5, 2 labeled Front office. There is a point at negative 6, 4 labeled Gym. There is a point at negative 4, negative 3 labeled Auditorium. There is a point at 6, negative 4 labeled Library. Peter's English class is located in the same quadrant as the auditorium. Which of the following could be the coordinates of the English classroom?
A (3, 2) B (−3, 2) C (−3, −2) D (3, −2)

Answers

Answer:

B

Step-by-step explanation:

Bc if u solve our you will get the answers and I’m learning about this stuff right now

Answer:

B

Step-by-step explanation:

Got it right

Please answer 200 points with brainleist

Answers

Answer:

The slope of the following relationship is proportional. Rhoda can show that the line is constant by emphasizing how the line is straight and connects with (0,0)

a. True

b. False

c. False

d. True

Step-by-step explanation:

I'm not completely sure about my answers but I really tried Hope I helped a little bit. :)

Have a great day :)

Answer:

It is following

Step-by-step explanation:

That she spends more money every time because she keeps using the minutes

Marta’s customer bought 4 large oranges at $0.75 each and 8 small oranges at $0.50 each plus tax was a total of $7.49. She used t to represent the amount of tax. Explain her errors in the diagram.

A bar diagram. The top box contains t. The bottom 3 boxes contain 7.49, 0.75 (8), and 0.50 (4).

Answers

Answer:

T should not have been in the top box the top box should have had 7.49 in it

Answer:

The total, 7.49, should be the top bar, and the variable, t, should be one of the partial bars. The prices for a certain number of oranges is also incorrect. $0.75 should be multiplied by 4 and $0.50 multiplied by 8.

Step-by-step explanation:

what is 3 2/3 minus 2 1/5

Answers

Answer: 1 7/15 or 22/15

Step-by-step explanation: calculator

Answer:

1 7/15

Step-by-step explanation:

To solve this equation, we first need to find the least common denominator. In this case, the LCD of 3 and 5 is 15.

We can then convert our fractions to fifteenths.

Our new equation is 3 10/15 - 2 3/15.

From there, we can subtract normally and we get 1 7/15. We know that's in simplest form because 7 is a prime number

Skew lines are parallel.

Answers

Yes i am pretty sure

what three ratios are equivalent to 7:6​

Answers

Answer:

14:12

21:18

28:24

Step-by-step explanation:

There are multiple but these are just a few

12:14, 21:18, 42:36, and 84:62.

Sam completed a race that is 7 kilometers long. Which distance is closest to the number of miles Sam ran?

Answers

Answer:

Sam ran around 4.3 miles.

around 4.35 miles my guy

I need help with the question l, can you help.please thank you​

Answers

If you can send an image of the beginning of the question, I’d be glad to help. You didn’t show enough info for me to get an answer
Other Questions
What is longitude and latitude? this is due today PLZ HELP!!!! literal equation Solve for W. the product of four and a number is negative twelve Solve the formulah = 54t + at for a help me plsssssssssss A distribution of values is normal with a mean of 114.5 and a standard deviation of 23.Find P47, which is the score separating the bottom 47% from the top 53%.P47 =Enter your answer as a number accurate to 1 decimal place. Answers obtained using exact z-scores or z-scores rounded to 3 decimal places are accepted. What is the next term in this sequence? t, q, p, h, h, o, n, ? convert to find equivalent rate.36,192 meters/years= meters/monthsPLEASE HELP!!! WILL MARK BRAINLIEST!!!!!! HELP!!! Compose a jingle to remind us on the different principles and safety rules in food preservation. thankyou!! What happens to Everymans soul in the end? Tanner scored 12 more points than Jason in a basketball game. If p represents the number of points that Tanner scored? Angela is a serious basketball player, but lately she has been struggling. First, her legs started getting tired halfway through practice. Next, her bones started aching. This week, she feels like she cant even take a full breath.Angela goes to see Dr. Chao. I feel like my whole body is falling apart. How can there be so many different things going wrong with me at the same time? Angela asks. Dr. Chao does a physical exam and asks Angela to take a few deep breaths. Actually, the doctor responds, theres only one small thing wrong with your lungs. Fortunately, there is a medicine that will improve all your symptoms right away.How can a problem in Angelas lungs cause problems all over her body? in a hypertonic solution, water will move ____ because there are too many solutes outside of the cell ?A.both into and out of the cell B. Out of the cell C.into the cell Someone please help me ill give brainlest Many performers, like singers, actors, and athletes, get paid large amounts of money. Do you think they earn these amounts or should they get paid less? Why? A number decreased by 23 is 44 . Find the number Which equation can be used to solve this problem?A) x - 23 = 44B) 23 - x = 44 C) x- 44 = 23D) 44 - x = 23 Having an individual lie down and elevate his or her legs after breaking a bone is intended to __________. You heard lemongrab, get in. Now. NOW. I SAID GET DAFUQ IN NOW Can someone please help me with this number 1 ?? ______tissue serves to support, protect,and bind together other tissues of the body