A) 3(a - b)  = 3*a +3*-b  = 3a - 3b  EQUAL
b) 2a(2 + b)  = 4a + 2ab     NOT EQUAL
        
                    
             
        
        
        
Answer:
The value of c that completes the square   is 1
 is 1
Step-by-step explanation:
We need to find the value of c that completes the square  
The formula used will be: 
In the question given the value c can be found by breaking the middle term. we are given 2x while the general formula is 2ab for middle term so,
2(x)(1) = 2x
so, c= 1
Solving:

So, the value of c that completes the square   is 1
 is 1
 
        
             
        
        
        
Answer:
c i think
Step-by-step explanation:
 
        
             
        
        
        
Answer:
13/102
Step-by-step explanation:
In a standard deck of 52 cards, there are 13 black spades, 13 black clubs, 13 red diamonds and 13 red hearts. There are 26 <u>black </u>cards in the deck of 52 cards.
Probability of drawing a black card = 26/52 = 1/2
Suppose we drew the black card. There are now <u>only 51</u> cards left in the deck. ALL of the hearts are still there - <u>13</u> of them.
Probability of drawing a heart from this deck of 51  = 13/51
In general, for the probability of event A <u>and then</u> event B, we multiply.
1/2 x 13/51 = 13/102