Answer:
80.95
Step-by-step explanation:
Percentage increase =  *100
 *100
=> (38-21)* 100/21 = 80.9523%
The answer round it to the nearest 100th = 80.95%
 
        
             
        
        
        
Answer: 4,111.7 mm³
Step-by-step explanation:
 You need to use this formula to calculate the volume of the square pyramid:
 
 Where "s" is the lenght of any side of the square base and "h" is the height of the pyramid.
 Find the height with the Pythagorean Theorem:
 
 Where "a" is the hypotenuse and "b" and "c" are the legs of the right triangle. Let be "c" the height of the pyramid.
 You can identify in the figure that:
 
 Then, you can find the height:
 
 Then, knowing that:
 
 You can calculate the volume:
  
 
 
        
             
        
        
        
–3x + 5.9 ≥ –15.4 
subtract 5.9 from each side
-3x >= -21.3
divide by -3  which causes the inequality to flip
x <= 7.1
Answer: -10,-5,0,5
 
        
                    
             
        
        
        
Answer:
24cm 
Step-by-step explanation:
The area of the rectangle is length × breadth. You already know the area and the breadth, so you can find the length. 
288cm² = length × 12cm 
length = 288cm² ÷ 12cm 
            = 24cm 
 
        
             
        
        
        
Answer:
01–78
Step-by-step explanation:
Edge 2020/2021