Answer:
the answer is −4x+7
Step-by-step explanation:
yes
 
        
                    
             
        
        
        
Answer:
Simplify the expression.
−
1b^{2}+
13
b
Step-by-step explanation:
 
        
                    
             
        
        
        
A(3,4) B(-3,2) C(-2,-4) D(6,-3)
        
                    
             
        
        
        
Answer: 0.3125.
Step-by-step explanation:
- The chance of having a boy is 0.5, 
- the chance of having a girl is also 0.5.
<u>Outcome 1: all boys</u>
boy  boy  boy  boy
0.5 * 0.5 * 0.5 * 0.5 = 0.0625
<u>Outcome 2: first child is a girl, all others are boys</u>
girl   boy   boy   boy
0.5 * 0.5 * 0.5 * 0.5 = 0.0625
<u>Outcome 3: second child is a girl, all others are boys</u>
boy   girl   boy   boy
0.5 * 0.5 * 0.5 * 0.5 = 0.0625
<u>Outcome 4: third child is a girl, all others are boys</u>
boy   boy   girl   boy
0.5 * 0.5 * 0.5 * 0.5 = 0.0625
<u>Outcome 5: fourth child is a girl, all others are boys</u>
boy   boy   boy   girl
0.5 * 0.5 * 0.5 * 0.5 = 0.0625
Therefore,
0.0625 + 0.0625 + 0.0625 + 0.0625 + 0.0625 = 0.0625 * 5 = 0.3125