First you find the probability of each coin turning up tails, then you multiply the two probabilities together:
1/2 x 1/2 = 1/4
        
             
        
        
        
Answer:
value 
Step-by-step explanation:
the v stands for value because it just does 
 
        
             
        
        
        
Answer:
=594
Step-by-step explanation:
(81)(66)(1)
9
=594
 
        
             
        
        
        
Answer:
8.63 square units
Step-by-step explanation:
you must set up a proportion.
3 x
- = -
8 23
after you set up that proportion, cross multiply to find x. 
8x = 69
divide by 8
x = 8.625, rounded to 8.63
 
        
             
        
        
        
Answer:
C. 52.5
Step-by-step explanation:
The total from W(-20) to Z(120) is 140.
You can add up all of the numbers in the ratio, 2:3:3, to get 8
Divide 140 by 8 to get 17.5
Multiply 17.5 times the number in the ratio for each segment, so the new ratio would be 35 : 52.5 : 52.5
Since you are trying to find segment XY, which was the 2nd number in the ratio, you would get your answer as 52.5