X=- 115/24
hope this helps :)
Answer:
The answer is D!
Step-by-step explanation:
hope this helps
Given:
A figure of a right triangle.
To find:
The missing side by using the trigonometric ratios.
Solution:
In a right angle triangle,
![\cos \theta=\dfrac{Adjacent}{Hypotenuse}](https://tex.z-dn.net/?f=%5Ccos%20%5Ctheta%3D%5Cdfrac%7BAdjacent%7D%7BHypotenuse%7D)
In triangle ABC,
![\cos A=\dfrac{AC}{AB}](https://tex.z-dn.net/?f=%5Ccos%20A%3D%5Cdfrac%7BAC%7D%7BAB%7D)
![\cos (31^\circ)=\dfrac{b}{270}](https://tex.z-dn.net/?f=%5Ccos%20%2831%5E%5Ccirc%29%3D%5Cdfrac%7Bb%7D%7B270%7D)
![0.857=\dfrac{b}{270}](https://tex.z-dn.net/?f=0.857%3D%5Cdfrac%7Bb%7D%7B270%7D)
Multiply both sides by 270.
![0.857\times 270=b](https://tex.z-dn.net/?f=0.857%5Ctimes%20270%3Db)
![231.39=b](https://tex.z-dn.net/?f=231.39%3Db)
![b\approx 231.4](https://tex.z-dn.net/?f=b%5Capprox%20231.4)
Therefore, the missing side length is b=231.4 inches.
Answer would be D
, you need to divide the total distance by the spacing to find total markers