What if you divide it by 100?
        
                    
             
        
        
        
Answer:  
Step-by-step explanation:
As per given , we have
n = 11

Since population standard deviation is missing, so we use t-test.
Critical t-value for 99% confidence :
 [using two-tailed t-value table]
   [using two-tailed t-value table]
Confidence interval :

Hence,  99% confidence interval for the mean amount of time that students spend in the shower each day.= 
 
        
             
        
        
        
Answer:
the answer is C
Step-by-step explanation:
 
        
                    
             
        
        
        
Greetings!Simplify both sides of the equation.


Both sides of the equation are not equal.
Hope this helps.
-Benjamin
 
        
             
        
        
        
Answer:
Answer = 93.6
Step-by-step explanation:
frist multipy 9 x 13 to get 117 than divided it by 2 = 58.5, than times it by 3 since there is three sides.
(58.5 x 3 is 175.5)      
Than for the base multipy 7.8 x 9 = 70.2, but since its a tri, divided it by 2 = 35.1.
Add 58.5 and 35.1 to get 93.6