Answer:
Step-by-step explanation:
area of front face=(12+8)/2 ×8=80 cm²
volume=80×22=1760 cm³
 
        
             
        
        
        
Answer:
6
Step-by-step explanation:
1. re-write the given system: 
cx+3y=c-3; => y= -cx/3 +(c-3)/3
12x+cy=c; => y= -12x/c+c/12
2. according the condition the rule for the parallel graphs is:
-c/3= -12/c
3. to calculate the unknown 'c':
c²=36; ⇔c=±6
 
        
                    
             
        
        
        
Answer:
6.5
Step-by-step explanation:
The sum of all angles in a triangle are 180 degrees.
=> 10x -10 + 8x + 10x + 8 = 180
=> 28x -2 = 180 
=> 28x = 182
=> x = 6.5
So, Angle A = 10 x 6.5 -10 = 65 - 10 = 55 degrees
      Angle B = 8 x 6.5 = 52 degrees
      Angle C = 10 x 6.5 + 8 = 65 + 8 = 73 degrees.
55 + 52 + 73 = 55 + 125 = 180 degrees
 
        
             
        
        
        
Answer:
0.60 gal to 0.12 gal can be rewritten as:

