Step-by-step explanation:
-2x+3=x+12
combin like terms
-2x-x=12-3
-3x=9
x=9/-3
x=-3
Answer:
198
You times 8.25 by 34 which would come out as 198
The value of the angle θ is 160.52° then the value of the cosine will be negative 0.9428.
<h3>What is trigonometry?</h3>
Trigonometry deals with the relationship between the sides and angles of a right-angle triangle.
Angle θ is in standard position.
If sin(θ) = − 1/3 , and π < θ < 3π/2
Then the angle will be
![\theta = \sin ^{-1}\dfrac{-1}{3}\\\\\theta = -19.47](https://tex.z-dn.net/?f=%5Ctheta%20%3D%20%5Csin%20%5E%7B-1%7D%5Cdfrac%7B-1%7D%7B3%7D%5C%5C%5C%5C%5Ctheta%20%3D%20-19.47)
Then add 180 degrees, then we have
![\theta = -19.47 + 180\\\\\theta = 160.52](https://tex.z-dn.net/?f=%5Ctheta%20%3D%20-19.47%20%2B%20180%5C%5C%5C%5C%5Ctheta%20%3D%20160.52)
Then the value of the cosine will be
![\cos 160.52^o=-0.9428](https://tex.z-dn.net/?f=%5Ccos%20160.52%5Eo%3D-0.9428)
More about the trigonometry link is given below.
brainly.com/question/22698523