What is the diamater of a circle
the area of a circle is 144π m^2

24 meters

Step-by-step explanation:

The area of a circle can be found using the following formula.

We know that the area is 144pi m^2.

Substitute 144pi m^2 in for a.

We want to find the diameter. First, we must find the radius. We have to get the variable, r,  by itself.

Divide both sides of the equation by pi.

The variable, r , is being squared. The inverse of a square is the square root. Take the square root of both sides of the equation.

The radius of the circle is 12 meters, but the question asks for diameter. The diameter is twice the radius.

The radius is 12 m.

Multiply

The diameter of the circle is 24 meters.

step-by-step explanation:

y = | -2(-2) |     →     y = | 4 |     →     y = 4       ⇒   (-2, 4)

y = | -2(-1) |     →     y = | 2 |     →       y =   2       ⇒   (-1, 2)    

y = | -2(0) |     →     y = | 0 |     →       y = 0         ⇒   (0, 0)

y = | -2(1) |   c →     y = | -2 |     →     y =   2         ⇒   (1, 2)    

y = | -2(2) |     →     y = | - 4 |     →     y =   4         ⇒   (2, 4)  

10.416 m/s

step-by-step explantion:

distance=100m

time= 9.6s

average speed=100/9.6

=10.416 m/s