This is just cylinder surface area, right? Equation for that would be 2πrh+2πr^2. If we input the data given from the image, it’d be (2 x π x 3.5 x 4)+(2 x π x 3.5 x 3.5). (4 is the height, and I found the radius by dividing the diameter, 7, in half, which is 3.5.) if u plug that into a calculator, u get 164.93.
        
             
        
        
        
Answer:
The height of the hovercraft at the time of takeoff is  33  meters.
Step-by-step explanation:
Height of hovercraft  x  seconds after takeoff  =  h(x)  =  -(x - 11)(x + 3)
Height after takeoff is  =  h(0)  =  -(0 - 11)(0 + 3)  =  -(-11)(3)  =  33
So the correct answer is 33 meters. The height of the hover craft at the time of the takeoff is 33 metres.
Answer: 33  meters.
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6 halves is 3.
B is at 3 1/2
3 1/2 minus 3 is 1/2
D would be plotted at 1/2.
        
             
        
        
        
Answer: the second
 one 
Step-by-step explanation:
 
        
             
        
        
        
Answer:
38.5
Step-by-step explanation:
First do 77/2 then you get 38.5, if anything is wrong please tell me!!