Taking color into account, does the shape have rotational symmetry? If so, what is the angle of rotation, rounded to the nearest
degree?
A. no, 0°
B. yes, 26°
C. yes, 28°
D. yes, 30°
A. no, 0°
B. yes, 26°
C. yes, 28°
D. yes, 30°
2 answers:
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Solution of the equation:
Step-by-step explanation:
The equation that we have to solve in this problem is:
The first step to do is to rewrite the mixed fractions as improper fractions. We have:
And
So the equation becomes
Now we multiply by 4 each term on both sides, and we get
Now we subtract 29 from both sides,
And finally, we divide both sides by 4:
Learn more about equations:
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We will use the sine and cosine of the sum of two angles, the sine and consine of 
, and the relation of the tangent with the sine and cosine:
If you use those identities, for
, you get:
Hence:
If you use those identities, for
Hence: