Question

Choose the equation you would use to find the altitude of the airplane. tan70 = 800/x sin70 = x/800 tan70 = x/800

Answer 1

Answer: tan(70)=x/800

Explanation:

Since we are looking at the altitude and x and 800 are given, we will need tangent. Tangent is opposite/adjacent. We can eliminate sin(70). Between our 2 tangent choices, the answer is tan(70)=x/800. Tan(70)=800/x is very close but incorrect. 800/x is adjacent/opposite. That is not a trigonometric function. We are looking for opposite/adjacent.