Answer:
 1759.52cm^3
Step-by-step explanation:
Given data
Cylinder E
h = 30 cm and 
r = 4 cm
The expression for the volume is
V= πr^2h
V= 3.142*4^2*30
V= 3.142*16*30
V=1508.16 cm^3
Cylinder F 
h=5 cm 
r = 4 cm
The expression for the volume is
V= πr^2h
V= 3.142*4^2*5
V= 3.142*16*5
V=251.36 cm^3
Hence the total volume is
=251.36+1508.16
= 1759.52cm^3
 
        
             
        
        
        
Answer:
55 mph
Step-by-step explanation:
220m    per 4 hours  
so 220 devieded by 4 gives u your answer
 
        
                    
             
        
        
        
Answer:
5.2 in
Step-by-step explanation:
An equilateral triangle is a triangle with 3 equal sides 
Divide the equilateral triangle into two congruent triangles and use Pythagoras theorem to find the height
The Pythagoras theorem : a² + b² = c²
where a =  height
b = base = 6 in / 2 = 3 in  
c =  hypotenuse = 6 in 
6² = 3² + h² 
h = 36 - 9 = 27
√27 = 5.196 inch
to the nearest tenth = 5.2 in
the tenth is the first number after the decimal place. To convert to the nearest tenth, look at the number after the tenth (the hundredth). If the number is greater or equal to 5, add 1 to the tenth figure. If this is not the case, add zero
 
        
             
        
        
        
Answer:
7
Step-by-step explanation:
each way from 10 to 7 is 3 and 4 to 7 is 4