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3 years ago

What is the formula for circumference?

2 answers:

4 0

The formula for circumference of a circle is 2πr, where “r” is the radius of the circle and the value of π is approximately 22/7 or 3.14. The circumference of a circle is also called the perimeter of the circle.

ira [324]3 years ago

4 0

Circumference = diameter X π

You might be interested in

1. If R = 32 - 11 (OC+2y). then find R when: x=2 and y=4

Mice21 [21]

The correct equation says to find R = 32 - 11 (X+2y). This gives us the value of -78.

<h3>How to solve for the equation below</h3>

We have this

R = 32 - 11 (X+2y)

we have the following values for x and y as 2 and 4 respectively.

What we have to do would be to find the value of R after we have put in these values in the equation.

To do this, we would then have:

R = 32 - 11(2 + 2*4)

R = 32 -11(2+8)

R = 32 - 11 * 10

R = 32 - 110

This would give us the value that says

R = -78

Hence the value of R is given as -78

Read more on equations below:

brainly.com/question/2972832

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5 0

2 years ago

PLS HELP FOR BRAINLIST!!!!!!!!There are 24 more students in a math class than in a history class. If the ratio of the students i

sattari [20]

44 students

Sorry it for this :/ usbshshehsshwjhwbss

5 0

3 years ago

Read 2 more answers

The school auditorium has 22 rows with 28 seats and 19 seats are empty. How many seats are filled?

zhuklara [117]

597.
22•28=616-19=597

6 0

3 years ago

Read 2 more answers

The quotient of (x^4 - 3x^2 + 4x - 3) and a polynomial is (x^2 + x - 3) what is the polynormial

Bess [88]

Answer:

Hello,

polynomial is x²-x+1

Step-by-step explanation:

if a=b*c+r then a=c*b+r

Using a long division, see the picture.

4 0

3 years ago

Write the standard form of the equation of the circle with center (7,1) that also contains the point (−1,−5).

Karo-lina-s [1.5K]

Answer:

$(x-7)^2+(y-1)^2=100$

Step-by-step explanation:

1) Find the radius

We can do this by using the distance equation with the centre (7,1) and the given point (-1,-5):

$d=\sqrt{(x_2-x_1)^2+(y_2-y_1)^2}$ where the two points are $(x_1,y_1)$ and $(x_2,y_2)$

Plug in the points (7,1) and (-1,-5)

$d=\sqrt{(-1-7)^2+(-5-1)^2}\\d=\sqrt{(-8)^2+(-6)^2}\\d=\sqrt{64+36}\\d=\sqrt{100}\\d=10$

Therefore, the radius of the circle is 10 units.

2) Plug the data into the equation of a circle

Equation of a circle (when not centred at the origin):

$(x-h)^2+(y-k)^2=r^2$ where the centre is $(h,k)$ and r is the radius

Plug in the centre (7,1) as (h,k)

$(x-7)^2+(y-1)^2=r^2$

Plug in the radius 10

$(x-7)^2+(y-1)^2=10^2\\(x-7)^2+(y-1)^2=100$

I hope this helps!

4 0

3 years ago