Answer:
30 degrees.
Step-by-step explanation:
Rotational symmetry is defined as a figure having the same appearance when rotated by a certain angle.
The wheel has 12 "handles." We can use these as reference points when rotating the image.
We also know that we can rotate by a total of 360 degrees. We can say that:
360/12 = 30 degrees.
Each time you rotate the wheel by 30 degrees, the image will end up on another handle (looks the same). This shows rotational symmetry.
I hope this helps!
245 455 527 I hop that helps I wasn't sure
Answer:
See explanation for matching pairs
Step-by-step explanation:
Equations
(1)
(2)
(3)

Solutions



Required
Match equations with solutions
(1)
and
Make x the subject in: 

Substitute
in



Collect like terms


Solve for y

Recall that: 


So:

(2)
and
Make y the subject in

Substitute
in 


Collect like terms


Solve for x

Solve for y in 



So:

(3)
and 
Make y the subject in 

Substitute
in

Collect like terms


Solve for x

Solve for y in 


So:

The addition property of equality
Won’t it look the same because you are basically rotating it in a full circle