Answer:

Step by step explanation:
Distribute the x as well as the -4  
x * x = x^2
x * 2 = 2x
-4 * x = -4x
 -4 * 2 = -8
Combine all the like terms, which means terms with the same variable or regular integers must be either added or subtracted amongst each other. 
2x + -4x = -2x
 
The final answer after combining all the like terms is
x^2 - 2x - 8
 
        
             
        
        
        
Answer:
Θ = 157.7°
Step-by-step explanation:
Given
cosΘ = - 0.925
Since cosΘ < 0 then Θ is in the second or third quadrant.
Since 0° ≤ Θ ≤ 180° then Θ is in the second quadrant. thus
Θ =  (- 0.925) = 157.7° ← angle in second quadrant
(- 0.925) = 157.7° ← angle in second quadrant
 
        
                    
             
        
        
        
Answer:
B
Step-by-step explanation:
1.2 x 3.7 nearest tenth
1 x 4 nearest whole number
B