The situation is represented by a drawing with a right triangle where an airplane is at the top corner, the elevation angle (opposite to the airplane) is 70°, the height (vertical leg) is x, and the adjacent leg (horizontal leg) to the 70° angle is 800.
Then, to find the height x, which is the opposite leg to the angle, you can use the tangent ratio, which is opposite leg divided by adjacent leg:
tan(x) = opposite leg / adjacent leg => tan(70°) = x / 800
Answer: tan(70°) = x / 800
Answer:

Step-by-step explanation:
we know that

----> 
see the attached figure to better understand the problem
Triangles ABD and BCD are similar by AA Similarity Theorem
Remember that
If two figures are similar, then the ratio of its corresponding sides is proportional
so

substitute the given values



simplify

Answer:
-3f+101
Step-by-step explanation:
A•a^7 = a^8 (add the power (n=1+7=8))
First you have to look at the way the shape is named based on order in each other. ABCD is congruent to GJIH. This means A will be congruent to G, and J will be congruent to B and so on. Same goes with side lengths, so that mean segment GH is congruent to AD based on the order of the name.
So x/3=9
You multiply by 3 on both sides to get x by itself.
So now your answer is x=27