Cos(o)= ads
CoS61X
5.5=* (Cos (60)
11.344
-
X= 5.5
COSC61)
The answer is in the picture
Set ? as x, and cross-multiply.
so x^2= 36
x = 6 or x = -6
The correct answer is x = 2.
Rx - st = r
Rx = r + st Add st to both sides
Rx - r = st Subtract r from both sides
(Rx - r)/t = s Divide t on both sides ( to isolate s)
