Check the picture below.
make sure your calculator is in Degree mode.
O 5(-8) = -40 this is the correct one and the question ask except
In step 2 .. because when you multiple by -4 in step 1 , the equation in step 2 will be ( -4y =-16 + 8z)
Answer:
The triangle is a obtuse triangle
Step-by-step explanation: