Answer:
biotbhuvb2tupbpu2
Step-by-step explanation:
 
        
             
        
        
        
Answer:
120 cm³
Step-by-step explanation:
V = (1/3)×base area×height
   = (1÷3)×(4×9)×10
   =120
 
        
             
        
        
        
Answer:
(38.1,88.6)
Step-by-step explanation:
We are given the following in the question:
Sample mean,  = 38.3
 = 38.3
Sample size, n = 695
Alpha, α = 0.05
Population standard deviation, σ = 3.6
95% Confidence interval:
 
Putting the values, we get,
 

 
        
             
        
        
        
Answer:
6 seconds
Step-by-step explanation:
Given
y = - 12x(x - 6)
When the ball hits the ground then height of ball is zero
let y = 0 , that is
- 12x(x - 6) = 0
Equate each factor to zero and solve for x
- 12x = 0 ⇒ x = 0 ← when ball is first kicked
x - 6 = 0 ⇒ x = 6 ← when the ball hits the ground.
The ball hits the ground after 6 seconds