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
Nookie1986 [14]
3 years ago
10

what is the formula for calculating the circumference, C, of a circle, if you know pi and the radius, r?

Mathematics
1 answer:
Serjik [45]3 years ago
6 0

Answer:

C = 2πr.

Step-by-step explanation:

To calculate the circumference of a circle, use the formula C = πd, where "C" is the circumference, "d" is the diameter, and π is 3.14. If you have the radius instead of the diameter, multiply it by 2 to get the diameter. You can also use the formula for circumference of a circle using radius, which is C = 2πr.

You might be interested in
Find the slope and the y-intercept of the line.<br> y=2x-7
Alecsey [184]

Answer:

slope is 2 or 2/1 and y intercept is -7

Step-by-step explanation:

y=mx+b

mx= slope

b= y intercept

8 0
2 years ago
Read 2 more answers
Find the value of x: 7e(×/3)=14
velikii [3]
<span>7e^(×/3)=14
</span><span>e^(×/3)=14/7
</span>e^(×/3)=2
take ln of both sides;
lne^(×/3)=ln2
****You should be familiar that lne^x=x as ln is the inverse function of e and vice versa****
then;
x/3=ln2
x=3ln2
x approximately is equal to 2.1
6 0
3 years ago
8 + 8( 8 - n ) = 40 + 8n
Ierofanga [76]

n=2

8+8(8-n)=40+8n (distribute 8 through the parenthesis)

8+64-8n=40-8n (add the numbers)

<em>72-</em>8n=40+8n (move the variable to the left side and change its sign)

<em>72</em><em>-</em>8n+8n=40

-8n+8n=40<em>-72</em> (connect like terms)

-16n = -32 (divide both sides by -16)

<u><em>n=2</em></u>




7 0
3 years ago
Read 2 more answers
Identify the two remote interior angles that correspond to angle 4.
Alchen [17]

Answer:

1 & 2

Step-by-step explanation:

Remote interior angles are the angles inside of a triangle but not on the same straight line as the exterior angle (4)

4 0
3 years ago
Read 2 more answers
A circle has a diameter of 21 meters. What is the circumference of the circle? Use 22/7 for ∏.
bogdanovich [222]

Answer:

66

Step-by-step explanation:

The diameter of the circle is 21. The formula for circumference is pie*radius*2. We don't have the radius but the diameter is just double the radius so just don't multiply by 2. 21 x 22 = 462. 46s divided by 7 is 66. Enjoy your answer :D

3 0
2 years ago
Other questions:
  • Henry bought 2 kilograms of chicken for a family dinner. After, only 61.5 grams were left. How much chicken was eaten, in kilogr
    9·2 answers
  • Q # 18 Find the midpoint of. A B
    8·1 answer
  • Plz asap surface area and volume of this shape
    11·1 answer
  • What is the equation of the line that is parallel to the line 2x − y = 3 and passes through the point (2, −1)?
    14·1 answer
  • Which method would i use to solve ax^2+c=d? justify your answer.
    15·1 answer
  • Help Plz help Plz help plz
    13·1 answer
  • What are good colleges?
    7·2 answers
  • Convert 900% to decimal​
    15·2 answers
  • A parabola is graphed such that the axis of symmetry is x = 3. One of the x-intercepts is (5, 0). What is the other x-intercept?
    7·1 answer
  • I need help on this problem please
    9·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!