Answer:
x ≈ 11.7
Step-by-step explanation:
Using the cosine ratio in the right triangle
cos26° = 
= 
( multiply both sides by 13 )
13 × cos26° = x , then
x ≈ 11.7 ( to the nearest tenth )
The simplify answer is 550.
The trigonometric ratios of the right triangle with the given value tan A = 9 / 40 are
sin A = 9 / 41
cos A = 40 / 41
<h3>Trigonometric ratios</h3>
Trigonometric ratios are used to solve for the sides and angles of a right angle triangle.
Therefore,
sin A = opposite / hypotenuse
cos A = adjacent / hypotenuse
tan A = opposite / adjacent
Using Pythagoras theorem, let find the hypotenuse side
c² = 40² + 9²
c = √1681
c = 41
Therefore,
sin A = 9 / 41
cos A = 40 / 41
learn more on trigonometric ratios here: brainly.com/question/24320387
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In order to solve the equation, set up a proportion. Use the similar sides together!
1. 16/8 = x/20.... Similar sides are in one ratio and they equal another ratio...."x" represents the side of VS
2.Solve for "x" by cross multiplying: 8x = 320
3. Divide by 8 to find "x": x = 40
Side VS equals 40. Hope this helped :)
