Answer:
46 in
Step-by-step explanation:
3x12=36+10=46
 
        
                    
             
        
        
        
Answer:
Option D is correct.

Step-by-step explanation:
In triangle ADE and triangle ABC
From the figure:
 [Angle]             [Given]
  [Angle]             [Given]
 [Angle]
  [Angle] 
AA(Angle-Angle) similarity criterion states that in two triangles if two pairs of corresponding angles are equal, then these triangle Similar.
By AA similarity:
⇒
 
        
             
        
        
        
Answer:
A.5
Step-by-step explanation:
 
        
             
        
        
        
Answer:
8x^2+19x
Step-by-step explanation:
Simplify the expression by combining like terms. Terms which look a like and sound a like should be added together. 
3x^2+7x+3+5x^2+12x
x^2 terms: 3x^2+5x^2=8x^2
x terms: 7x+12x=19x
constants: 3
Together is is 8x^2+19x+3.