Answer:
33.94 cms of ribbon
Step-by-step explanation:
Because you need two diagonals to form the x, therefore the amount  of ribbon needed is the sum of the distance of both diagonals.
When crossing the diagonal, a rectangular angle is formed, where the diagonal would be the hypotenuse, we know that the distance of the hypotenuse can be calculated by means of the legs, which we know its value (12):
d ^ 2 = a ^ 2 + b ^ 2
a = b = 12
d ^ 2 = 12 ^ 2 + 12 ^ 2
d ^ 2 = 288
d = 288 ^ (1/2)
d = 16.97
16.97 cm is what it measures, a diagonal, therefore tape is needed:
16.97 * 2 = 33.94
A total of 33.94 cms of ribbon is needed
Answer from jmonterrozar
 
        
             
        
        
        
Answer:
(x + x + 3) = 24
Step-by-step explanation:
If charles has 3 more yellow than blue marbles, then it's x + 3 for the yellow, and just x for blue
 
        
             
        
        
        
Answer:
14
Step-by-step explanation:
 
        
                    
             
        
        
        
Answer:
A = 3244
B = 864
C = 3080
Step-by-step explanation:
  700 + a = 3944
  -700          -700
a = 3244
  3944 - b = c - 80 = 3000
c - 80 = 3000
   +80       +80
c = 3080
3944 - b = c ---> 3944 - b = 3080
                           -3944        -3944
                                -b = -864 --->   
 
 
        
             
        
        
        
Answer:
Bayes’ Theorem describes the probability of occurrence of an event related to any condition. It is also considered for the case of conditional probability.
 For prove refer to the attachment.
Hope this helps you^_^