Solution:XOR: X+Y= XY’ + X’YDual of XOR:= (X +Y’)+(X’+Y)= XX’+XY +X’Y’ +YY’= XY + X’Y’ Complement of XOR (XNOR)= (X+Y)’= (XY’ + X’Y)’=(X’+Y)+(X +Y’)= XX’+ XY + X’Y’+YY’= XY + X’Y’ 
HOPE IT HELPS
        
             
        
        
        
Hello,
Let's assume n the number searched.
nine less 3 times n is written 9-3n 
 
 
        
        
        
9514 1404 393
Answer:
   {-8, -4, -2, -1, 1, 2, 4, 8}
Step-by-step explanation:
Possible rational roots are positive and negative divisors of the constant 8:
   {-8, -4, -2, -1, 1, 2, 4, 8}
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<em>Additional comment</em>
This polynomial has no rational roots. Its two real roots are both negative and irrational.
 
        
             
        
        
        
The selling price would be $11.20.
40% = 40/100 = 0.4
The mark up is 40% of the cost; this means 40% of 8:
40% of 8 = 0.4(8) = 3.20
8 + 3.20 = 11.20
        
             
        
        
        
Answer:
75 mph
Step-by-step explanation:
A biker must circle a 12-mile track twice. His average speed must be 60 mph.
So, the average time required to cover the distance is  hours.
 hours.
Now, on his first lap, he averaged 50 mph.
So, he covered this 12 miles track in  hours.
 hours.
Hence, he has to cover the next 12 miles track in (0.4 - 0.24) = 0.16 hours.
Therefore, his average speed in the second round must be  mph to qualify. (Answer)
 mph to qualify. (Answer)