Answer:
5x-7
Step-by-step explanation:
5 times x (a number) subtract 7
 
        
             
        
        
        
Answer:
(3x^2 - 2x + 5)
Step-by-step explanation:
 3x^2 - 2x + 5

 
 - <u>(6x^3 + 3x^2)</u>
 -4x^2 +8x +5
 - <u>(-4x^2 - 2x)</u>
 10x + 5
 -(<u>10x + 5)</u>
 00
(2x+1) (3x^2 - 2x + 5) = 6x^3 - x^2 + 8x + 5
Therefore the other factor of the polynomial is (3x^2 - 2x + 5)
 
        
                    
             
        
        
        
The answer for this problem: Option C.
        
                    
             
        
        
        
The angle between two vectors is:
CosФ = u - v / Magnitude(u) x magnitude(v)
Magnitude of u = SQRT(7^2 + -2^2) = SQRT(49 +4) = SQRT(53)
Magnitude of v = SQRT(-1^2 +2^2) = SQRT(1 +4) = SQRT(5)
u x v = (7 x -1) + (-2 x 2) = -7 + -4 = -11
cosФ = -11 / sqrt(53) x sqrt(5)
cosФ = -11sqrt265) / 265
Ф =cos^-1(-11sqrt265) / 265)
Ф=132.51 degrees.