Can you tell me the answer and how u got it

Well first combine the like terms on each side. So you get 4+.8x
and for the other side 2x over five plus six.
Then you subract the four from the other side and get .8x= 2 + 2x
Then subract by 2 to get .8x-2=2x
Then divide by two for both x's
You get .4-2=x
You then get 1.6
              

Just a second zzz

Hello! i hope this
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.