To find the area of a circle, we use the equation A = πr^2. In this case, we will divide the equation by 3 because we are only finding 1/ of a circle. So, our equation will be A = (πr^2)/3.

Using 3.14 for π:

A = (πr^2)/3.

A = (π3^2)/3

A = (π9)/3

A = 3π

A = 9.42

6 0

1 year ago

Mala is y years old. Her sister is 4 years older than mala . Write expréssion in simplest form that represents the sum of ages o

Evgen [1.6K]

Answer:

$2(y+2)$

Step-by-step explanation:

Let

y --->Mala's age

x---> sister's age

we know that

$x=y+4$ ---> equation A

The sum of ages of the sisters is

$x+y$

substitute equation A in the expression of the sum of ages

$(y+4)+y=2y+4$

simplify

$2(y+2)$

8 0

3 years ago

What is the domain of F(x)=9-x?? F F(x) >9 G All real numbers H-3 1 x59

Julli [10]

I’m pretty sure it’s h because the lines meet in the x axis

8 0

2 years ago

The area of a square is 28cm,what is the lenght of the square​

The area of a square is 28cm,what is the lenght of the square