Answer:
Y= -4x+ 21 
Step-by-step explanation: 
 
        
             
        
        
        
root means square velocity of one mole of a monoatomic gas having molar mas*s m(M) is Urms. The relation between average kinetic energy (e)of the gas and Urms is Urms=M2E
StarrySoul please check it...
 
        
             
        
        
        
Answer:
x = 17
Step-by-step explanation:
Line l and m are two parallel lines cut across by the transversal line, therefore, the angle measuring 53° and (8x - 9)° are interior angles on the same side. Interior angles on the same side are supplementary. 
Therefore:
53° + (8x - 9)° = 180°
Solve for x
53 + 8x - 9 = 180
Collect like terms
53 - 9 + 8x = 180
44 + 8x = 180
Subtract 44 from both sides 
44 + 8x - 44 = 180 - 44
8x = 136
Divide both sides by 8
8x/8 = 136/8
x = 17
 
        
             
        
        
        
17=70h
Divide each side by 70
It would be 14 mins and 33 seconds
        
             
        
        
        
Answer
899
Step-by-step explanation:
99