3 years ago

The formula for the circumference of a circle is C = 2 πr .use this formula for RADIUS of a circle

Mathematics

1 answer:

Luden [163]3 years ago

4 0

Answer:

C) r= C/ 2π

Step-by-step explanation:

C=2πr

C/2=πr

C/2π=r

You might be interested in

Elena has one and a half times as much money as ramon. together they have $225. how much money does each have? choices for ramon

torisob [31]

E= 1.5R
E+R=225
1.5R+R=225
2.5R=225
R= 90

6 0

3 years ago

A sector of a circle has a central angle to 10° and arc length 28 pi units what is the radius of the circle

Dennis_Churaev [7]

Answer:

Radius = 504units

Step-by-step explanation:

Angle = 10°

Length of arc = 28π units

L = ∅/360 × 2πr

28π = 10/360 × 2πr

28π = 1/36 × 2πr

2πr = 28π × 36

π cancelled off.......

2r = 28 × 36

r = (28 × 36)/2

r = 28 × 18

r = 504units

8 0

3 years ago

John mows lawns. He can mow 7 lawns in 5 hours. At this rate, how long would it

sweet [91]

It will take him 30 hours

4 0

3 years ago

Can someone help me with the questions in the picture?

jolli1 [7]

Answer:

1. x= -4

2. x= 18

3. x= -15

4. x = 6

Step-by-step explanation:

Use relationship of angles to create equations and solve for x

6 0

3 years ago

Read 2 more answers

What will be the index of 2 for its value equal to 1/2

Art [367]

Answer:

the index of 2 is -1

Step-by-step explanation:

$2^{-1}$

= $\frac{1}{2^1}$

= $\frac{1}{2}$

3 0

2 years ago