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
dolphi86 [110]
2 years ago
12

Find the circumference of the circle whose diameter is 210cm

Mathematics
2 answers:
hammer [34]2 years ago
7 0

Hello!

To find the circumference of a circle, you multiply the diameter by pi. Let's do so below.

210\pi \approx 659.73

Therefore, our circumference is about 659.73 cm.

I hope this helps!

Lynna [10]2 years ago
6 0
Circumference=2πr
=2*3.14*105
=659.4cm
You might be interested in
The table represents a linear function. find the values of a,b, and c. Show your work.
viva [34]

Answer:

The values of a , b , c are ⇒ a = 1 , b = 10 , c = 9

Step-by-step explanation:

* Lets describe the meaning of the linear function

- Linear function is represented by a line graphically

- The equation of the line is y = mx + c, where m is the slope

  of the line and c is the y-intercept (the point of intersection

  between the line and the y-axis is (0 , c))

- m = change of y/change of x

- We can find m from any two points on the line

* Lets use m to find a, b and c

- Use the points (3 , 8) and (5 , 9) to find m

∵ m = (y2 - y1)/(x2 - x1)

∴ m = (9 - 8)/(5 - 3) = 1/2

- Find a by using points (a , 7) and (3 , 8) ⇒ (or (5 , 9))

∵ m = (8 - 7)/(3 - a) = 1/2

∴ 1/(3 - a) = 1/2  ⇒ by using cross multiplication

∴ 3 - a = 2 ⇒ subtract 3 from both sides

∴ -a = -1 ⇒ × -1 both sides

∴ a = 1

- Find b by using points (5 , 9) and (7 , b) ⇒ (or (3 , 8))

∵ m = (b - 9)/(7 - 5) = (b - 9)/2

∴ (b - 9)/2 = 1/2  ⇒ by using cross multiplication

∴ 2(b - 9) = 2 ⇒ open the bracket

∴ 2b - 18 = 2 ⇒ add 18 to both sides

∴ 2b = 20 ⇒ ÷ 2

∴ b = 10

- Find b by using points (5 , 9) and (c , 11) ⇒ (or (3 , 8))

∵ m = (11 - 9)/(c - 5) = 2/(c - 5)

∴ 2/(c - 5) = 1/2  ⇒ by using cross multiplication

∴ c - 5 = 4 ⇒ add 5 to both sides

∴ c = 9

* The values of a , b , c are ⇒ a = 1 , b = 10 , c = 9

6 0
3 years ago
They need to make room for the 2022 model.
Elena-2011 [213]
I don’t know I just need points lol
4 0
2 years ago
Please help ASAP!!!!!!!!!!!
Effectus [21]

Answer:

x = 3.76 ft

Step-by-step explanation:

To find the missing side, "x", solve using proportions.

In similar polygons, the 'new' polygon was created by multiplying every side of the 'old' polygon by the same number. Every side was multiply by the <u>scale factor</u>, "k", which tells you how much a polygon grew (k>1) or shrunk (0<k<1).

Therefore, if you divided the pairs of corresponding sides, they would be equal.

From the diagram, you can tell that the following sides correspond:

CB ~ GF

AB ~ EF

<u>Use the proportion</u>

\frac{EF}{AB} = \frac{GF}{CB}

\frac{x}{6ft} = \frac{3.3ft}{5ft}      Substitute values from diagram

6ft*\frac{x}{6ft} = 6ft*\frac{3.3ft}{5ft}       Multiply both sides by 6 ft

x = \frac{6ft*3.3ft}{5ft}        "x" is isolated. Multiply fraction by combining into numerator

x = \frac{19.8ft}{5ft}        Solved numerator. Divide for decimal answer.

x = 3.76ft

The value of 'x' is 3.76 ft.

4 0
2 years ago
What is mBC ?<br> A. 28<br> B. 56<br> C. 70<br> D. 140
const2013 [10]

56 is the right answer trust me

5 0
2 years ago
Read 2 more answers
The Philadelphia Museum of Art’s triangular pediment has the measurements shown in the diagram. What is the area?
kherson [118]

Answer:

420 ft^2

Step-by-step explanation:

12x70=840

840/2=420

5 0
3 years ago
Other questions:
  • Rhett is solving the quadratic equation 0= x2 – 2x – 3 using the quadratic formula. Which shows the correct substitution of the
    7·1 answer
  • What is 3 + x/-2 = 10
    10·2 answers
  • What is the combined weight of all the kittens? Weight of kittens: 1/4 pound: 2 kittens. 3/8 pound: 3 kittens. 1/2 pound: 3 kitt
    14·1 answer
  • The number of years from the start of the Great Depression to the first presidential election of Richard Nixon is six years less
    10·2 answers
  • What is the value of n in the equation –1/2(2n + 4) + 6 = –9 + 4(2n + 1)?
    9·1 answer
  • EXPERTS/ACE/GENIUSES
    8·1 answer
  • HeLp! I need HeLp! Plz hElP! ThAnK YoU!
    10·1 answer
  • 3p - 1 = 5(p - 1) - 2(7 - 2p)<br><br> A. 3 <br> B. 0 <br> C. -9 <br> D. -10
    14·1 answer
  • Thomas bought 4 shirts from a store. The price of each shirt was the same. After he bought the shirts, his account balance showe
    10·2 answers
  • What are all of the free robux codes on roblox??
    11·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!