Answer:
Step-by-step explanation:
Ac²= AB²+ BC²
Ac²= 4²+15²= 16+225
Square both side
 Ac = √241= 15.52cm
 
 
        
             
        
        
        
Answer:
4k(k-3)(2k-1)
Step-by-step explanation:
 
        
             
        
        
        
Answer:
(-2, 3)
Step-by-step explanation:
the point B is
B(x,y)
x
AB (A to B) is twice BC ( B to C )
AB is 2 - x. BC is x - (-4)= x + 4
So
2-x=2 (x + 4)
2-x=2x + 8
3x = -6
x = -2
y
(Same logic as above)
AB is -5 -y. BC is u - 7
-5 -y = 2(y - 7)
-5 - y = 2y - 14
3y = 9
y= 3
the point is (-2, 3)
 
        
             
        
        
        
Answer:
-94+-316=-410
-410+94=-316
Step-by-step explanation: