Answer:
Step-by-step explanation:
sin(90-a)=cos
cos = angle adjacent
theta=BC/CA
The answer to this equation is 1/2
Correct - wrong percentage
-------------------- = ---------------
wrong 100
68 - 60 x
--------- = ----
60 100
8 x
---- = ----
<span>60 100
</span>800 60x
----- = ----
60 60
13.3% = x
The answer is 10x+9y+6 if your trying to combine all like terms.