Respuesta :

✦ Find the cosine function. 
✦ CosX = 4.2 / 5 - 0.85 
✦ Find the inverse cosine function.
✦ Accros0.84 = X*
✦ = 32.86

The answer is 32.86 degrees.

Hope that helps! ★ If you have further questions about this question or need more help, feel free to comment below or leave me a PM. -UnicornFudge aka Nadia