Given the equation (x + 3) ^ 2 + y ^ 2 = 81 choose ALL correct answers 1.The center of the circle would lie on the x-axis.

2. The center of the circle would lie on the y-axis.

3.The center of the circle would lie in a quadrant.

4. The radius is 9

5. The radius is 40.5

6.The radius is 81

7. The diameter is 18

8.The diameter is 81

9. The diameter is 162 Help please

The equation of a circle having the center (a, b) and radius r could be formulated by:

(x - a)^2 + (y - b)^2 = r^2

A circle, which has equation form: (x + 3) ^ 2 + y ^ 2 = 81, can be turned into:

(x - -3)^2 + (y - 0)^2 = 9^2

=> center (-3, 0)

=> radius = 9

=> Option 1 is correct

=> Option 4 is correct

=> Option 7 is correct

Hope this helps!

:)

let's solve your equation step-by-step.

4x+2=2x+12

step 1: subtract 2x from both sides.

4x+2−2x=2x+12−2x

2x+2=12

step 2: subtract 2 from both sides.

2x+2−2=12−2

2x=10

step 3: divide both sides by 2.

2x

2

=

10

2

x=5

step-by-step explanation:

to find the perimeter of the rectangle this is the expression:

x-9+x-9+3x-4+3x-4=138

if we simplify it:

8x-26=138

remember, 138 is what it all adds up to

the length is 11.5cm

the width is 57.5cm

the area is 661.25cm^2

the answers might not be correct use at own risk