Hello!
If you add up the squares of the two legs, it will equal the square of the hypotenuse. As we already have the hypotenuse, we will subtract.
225-81=144
Now we find the square root.
√144=12
Therefore, the other leg is 12 cm long.
I hope this helps!
 
        
                    
             
        
        
        
Answer:
4% of all adults go to a health club at least twice a week
Step-by-step explanation:
- the proportion of adults who belong to health clubs is 10% that is 0.10
- the proportion of these adults (health club members) go to the club at least twice a week is 40%, that is 0.40.
Thus, the proportion of all adults go to a health club at least twice a week is 
0.10 × 0.40 = 0.04, that is 4%
 
        
             
        
        
        
Answer:
434.9
Step-by-step explanation:
 × π (4.7)²
 × π (4.7)²
434.893
 
        
                    
             
        
        
        
Y=7/5+6.8
I believe it can a little more than 6.8 but either way this is correct