All categories

2 years ago

What's the radius of a circle with area 9π units2?

Mathematics

1 answer:

storchak [24]2 years ago

3 0

Answer:

option C : 3 units

Step-by-step explanation:

radius of circle is 3 units

plz mark my answer as brainlist plzzzz.

hope this will be helpful to you .

You might be interested in

point P is located at (-2, 7), and point R is located at (1, 0). find the y value for the point Q that is located 2/3 the distan

natulia [17]

Answer: 7/3

Step-by-step explanation:

R-P= (3,-7). the displacement vector.

P+x(R-P) moves to x times distance between

P+(R-P) = R moves to 100% of the distance.

Q = P+2/3(R-P)

= (-2,7)+2/3(3,-7)

= (-2,7)+(2,-14/3)

= (0,7-14/3)

= (0,7/3)

= (0,2.3333...)

7 0

3 years ago

What is the slope for this graph?* (3,2) |(1,2) (-2,1) (-1,2)

Ad libitum [116K]

Answer:

the slope is 0

Step-by-step explanation:

4 0

2 years ago

Read 2 more answers

How many times greater is the number of brain cells in a human as compared to the any?

kirill115 [55]

Answer:

25 Times

Step-by-step explanation:

6 0

3 years ago

Circle A’s circumference is 3 times the value of Circle B’s Area. Find Circle B’a radius.

Natali [406]

(side note: your formula C = 2πr^2 is incorrect, it should be C = 2πr)

Answer:

r = 9

Step-by-step explanation:

First let's find the circumference of Circle A. To use the formula we need radius. Since we have a diameter just divide by 2 to get radius. 27 / 2 = 13.5

Now plug that into C = 2πr: 2π*(13.5) = 27π

The question says that the area of circle B is 3x this value, so Circle B's area must be: 27π * 3 = 81π

Now plug that into A = πr^2 and solve for r:

$81\pi=\pi r^{2}\\81=r^{2}\\\sqrt{81}=r\\9=r$

(edited to correct a brain fart)

5 0

2 years ago

The sumn of the interior angles of a polygon of n sides is

denpristay [2]

Answer:

I think c

Step-by-step explanation:

that is what it showed on my test I am not a 100% sure.

7 0

2 years ago