1answer.
Ask question
Login Signup
Ask question
All categories
  • English
  • Mathematics
  • Social Studies
  • Business
  • History
  • Health
  • Geography
  • Biology
  • Physics
  • Chemistry
  • Computers and Technology
  • Arts
  • World Languages
  • Spanish
  • French
  • German
  • Advanced Placement (AP)
  • SAT
  • Medicine
  • Law
  • Engineering
Zinaida [17]
3 years ago
15

Suppose the circumference of a circle is 2 pi what is the area?

Mathematics
2 answers:
Olenka [21]3 years ago
5 0
C = 2 * pi * r

Plug in what we know:

2pi = 2 * pi * r

Divide 2 pi to both sides:

r = 1

(Remember, anything divided by itself is equal to 1)

A = pi * r^2

Plug in what we know:

A = pi * 1^2

A = pi * 1

A = 1 pi

So the area is '1 pi' or just 'pi'.
irina1246 [14]3 years ago
4 0
 <span>Circumference of a circle = 2 π r 

(where r is the radius) 

Area of a circle = π r^2 

(where r is the radius) 

you have to find the radius

C = 2π unit 
r = 1 unit 

Area = π square units 
</span>
You might be interested in
PLS HELP ASAP, ILL MARK BRAINLIEST IF ITS A REAL ANSWER. LOOK AT THE PICTURE.
Snezhnost [94]

Answer:

#1 yes #2

Step-by-step explanation:

I added comments on why it is correct

7 0
3 years ago
IF YOU DONT KNOW THE ANSWER DONT ANSWER I NEED AN A ON THIS IN ORDER TO PASS MATH SO PLS HELP IF YOU CAN IF NOT DONT
saul85 [17]

Answer:

1) 2019

2) 120-50=70

3) 2018

4) 100

5) 2018

6) 120-80=40

7) 2018

Step-by-step explanation:

1) 2019

2) 120-50=70

3) 2018

4) 100

5) 2018

6) 120-80=40

7) 2018

5 0
3 years ago
Which one of the quotients is correct? A) 876 ÷ 43 = 20r17B) 876 ÷ 43 = 20r16C) 876 ÷ 43 = 20r7D) 876 ÷ 43 = 20r6
Olegator [25]

To check which of the quotients is correct, multiply 43 times 20 and add the remainder. The result must be equal to 876.

First, notice that 20 times 43 equals 860.

A)

The remainder is 17. 860 + 17 = 877, which is not equal to 876.

B)

The remainder is 16. 860 + 16 = 876, which is equal to 876.

C)

The remander is 7. 860 + 7 = 867, which is not equal to 876.

D)

The remainder is 6. 860 + 6 = 866, which is not equal to 876.

Since 20*43 + 16 = 876, then the correct quotient is shown in option B:

876 ÷ 43 = 20 r 16

4 0
1 year ago
Please help me with this problem. I'm stuck!!
mihalych1998 [28]
\bf S(t)=4\pi \left( \cfrac{3}{8}t^4 \right)^2\impliedby \textit{distributing the exponent}&#10;\\\\\\&#10;S(t)=4\pi \left( \cfrac{3^2}{8^2}t^{4\cdot 2} \right)\implies S(t)=4\pi \cdot \cfrac{9t^8}{64}\implies S(t)=\cfrac{4}{64}\cdot \cfrac{9\pi t^8}{1}&#10;\\\\\\&#10;S(t)=\cfrac{1}{16}\cdot \cfrac{9\pi t^8}{1}\implies S(t)=\cfrac{9\pi t^8}{16}
6 0
3 years ago
Find the value of x. ​
andrezito [222]

Answer:

d. 16 feet

Step-by-step explanation:

x² + 12² = 20²

x² + 144 = 400

x² + 144 - 144 = 400 - 144

x² = 256

√x² = √256

x = 16

5 0
3 years ago
Other questions:
  • Kacey is making a necklace that is 16 inches long. She uses 5 beads for every inch. How many beads will she need. 
    13·2 answers
  • Sandra walked to the top of a hill at a speed of 2 km/h, turn around and walked down the hill at a rate of 4 km/h. the whole tri
    12·1 answer
  • How do I simplify 7(3x + 9=
    10·2 answers
  • Lian is deciding which of two gyms to join. Each gym charges a monthly rate plus a one-time membership fee.Lian correctly wrote
    14·2 answers
  • What 2 numbers are between 8.43 and 8.437​
    7·1 answer
  • PLEASE HELP!!!!Ned wrote the following statement:
    6·2 answers
  • Solve the following inequality for w 8w+8&gt;-10w-5
    11·1 answer
  • HELPPPPPPP PLSSS ON THESE 4 QUESTIONSSSSS
    7·2 answers
  • Denver gets 5/19 of the dog food.
    8·1 answer
  • The sum of three consecutive integers is 1.623
    7·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!