Answer:
108ft³
Step-by-step explanation:
V=(base area) (h/3)   =    81 (4
/3) =108ft³
 
        
             
        
        
        
12 ÷ 3 - 5(12) + 4(12 - 2)
= 4 - 60 + 4(10)
= -56 +40
= -16
        
                    
             
        
        
        
Answer:
27 hundredths
Step-by-step explanation:
.2 is in the tenths place,
.07 is in the hundredth place,
.27 is 27 hundredths
 
        
                    
             
        
        
        
Answer:
3.78
Step-by-step explanation:
 
        
                    
             
        
        
        
Answer:
(b) 
Step-by-step explanation:
When two p and q events are independent then, by definition:
P (p and q) = P (p) * P (q)
Then, if q and r are independent events then:
P(q and r) = P(q)*P(r) = 1/4*1/5
P(q and r) = 1/20 
P(q and r) = 0.05
In the question that is shown in the attached image, we have two separate urns. The amount of white balls that we take in the first urn does not affect the amount of white balls we could get in the second urn. This means that both events are independent.
In the first ballot box there are 9 balls, 3 white and 6 yellow.
Then the probability of obtaining a white ball from the first ballot box is:

In the second ballot box there are 10 balls, 7 white and 3 yellow.
Then the probability of obtaining a white ball from the second ballot box is:

We want to know the probability of obtaining a white ball in both urns. This is: P( and
 and  )
)  
As the events are independent:
P( and
 and  )  = P (
)  = P ( ) * P (
) * P ( )
)
P( and
 and  )  =
)  = 
P( and
 and  )  =
)  = 
Finally the correct option is (b) 