The greatest common factor of 60w^5y^3 and 78wy^2

60w^5y^3= 2 x 3 x 10 x w x w^4 x y x y ^2 78wy^2= 2 x 3 x 13 x w x y^2 GCF= 2 x 3 x w x y^2 is 6wy^2 The answer is B. Hope this helps.

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since the cosine is the ratio of the adjacent side to the hypotenuse, you can see that cos 60° = ½. answer. according to the property of cofunctions (topic 3), sin 30° is equal to cos 60°. sin 30° = ½.