Answer:
(D) sIn(30°) = 5/x
Explanation:
The mnemonic SOH CAH TOA reminds you of the relationship between sides and trig functions for a right triangle. Here, the hypotenuse and the side opposite the angle are marked. The relevant relationship is ...
Sin = Opposite/Hypotenuse
Filling in figure values, we have ...
sIn(30°) = 5/x