Answer:
Step-by-step explanation:
Here are the 3 answers you needed :)!!!
 
        
                    
             
        
        
        
1) 7
2) irrational number (I believe)
3) square root of 441
        
                    
             
        
        
        
Answer:
140 inches cubed
Step-by-step explanation:
Use the formula V = length * width * height to find the volumes of each block, then add them together to get the combined volume. So, (5 * 4 * 5) + (4 * 5 * 2) = 140 inches cubed, which is the combined volume.
Hopefully this helps- let me know if you have any questions!
 
        
             
        
        
        
Answer:
2.29 rads
Step-by-step explanation:
The  length of the arc of a circle of radius r is given by;
l = rθ            ---------------------------(i)
Where;
l = length of the arc
θ = central angle o that intercepts that arc and measured in radians.
From the question:
l = 16ft
r = 7ft
Substitute these values into equation (i) as follows;
16 = 7θ
Make θ subject of the formula
θ = 
θ = 2.29     
Therefore, the radian measure of the central angle is 2.29 rads
 
        
             
        
        
        
Ratio of Cake Donuts to Total Donuts = 15/36
Let, the number of people with Cake donuts = x
Then, 15/36 = x/12
x = 12/36 * 15
x = 1/3 * 15
x = 5
In short, Your Answer would be: 5
Hope this helps!