Part A)
 The coin landed on heads 9 times out of 30 flips, so the experimental probability is 9/30, which reduces to 3/10 probability.
Part B)
 Theoretically a coin has a 1/2 probability of landing on heads each flip
        
             
        
        
        
Answer:
To find the area of she shaded part we first need to find the total of the area.
L x W
8 x 5 = 40 is the total area
Now we need to find the area of the non - shaded part
Since it is a square all sides are equal the short lines sticking from the sides indicate that
2 x 2 = 4
Now we subtract the total area from the non shaded area.
40 - 4 = 36
 
        
                    
             
        
        
        
The answer is 91 ............
        
                    
             
        
        
        
Answer:
(x, y) ----> (-x, y).
Step-by-step explanation:
(x, y) ----> (-x, y).
The y value stays the same but the x-value changes sign.
 
        
             
        
        
        
Answer:
use a2+b2=c2 so
Step-by-step explanation:
11(squared)+b(squared)=13(squared)
=121+b2=169
-121. -121
b2= 48
square root 48
Side B= 6.928
and then just round 6.928 
hope this helped