Answer:
5
Step-by-step explanation:
they are equal to one another soo make an equation and solve it 2x-10 then divide that and get 5
 
        
             
        
        
        
Answer:
a) x=93
Step-by-step explanation:
 
        
                    
             
        
        
        
Answer:
x = 10°
Step-by-step explanation:
a). Since, opposite angles of a cyclic quadrilateral are supplementary angles"
    Therefore, in cyclic quadrilateral ABDE,
    m∠ABD + m∠AED = 180°
    110° + m∠AED = 180°
    m∠AED = 180° - 110°
                  = 70°
b). AD = ED [Given]
    m∠EAD = m∠AED [Since, opposite angles of equal sides are equal in measure]
    m∠EAD = m∠AED = 70°
    By triangle sum theorem in ΔABD,
    m∠BAD + m∠ABD + m∠ADB = 180°
    m∠BAD + 110° + 40° = 180°
    m∠BAD = 180 - 150
                  = 30°
     m∠AEB = m∠AED + m∠DAB [By angles addition postulate]
     m∠AEB = 70° + 30°          
                   = 100°
     By triangle sum theorem in the large triangle,
     x° + m∠AEB + m∠EAB = 180°
     x° + 100° + 70° = 180°
     x = 180 - 170 
     x = 10°
 
        
             
        
        
        
We have the following expression:
 (x- (5/2)) ^ 2 = (13/4)
 Let's rewrite the given expression:
 x ^ 2 - 5x + 25/4 = (13/4)
 x ^ 2 - 5x + 25/4 - 13/4 = 0
 x ^ 2 - 5x + 12/4 = 0
 x ^ 2 - 5x + 3 = 0
 Answer:
 the original equation given to Sam could have been:
 x ^ 2 - 5x + 3 = 0