It's not clear to me what the given interval is supposed to be, so I'll use a generic one, [a, b] with a < b.
The average acceleration of the particle over this interval is given by the average rate of change of v(t),

 
        
             
        
        
        
The answer is B and C. The atmospheric pressure is 14lb/in2 and As the altitude approaches sea level, the atmospheric pressure increases.
        
                    
             
        
        
        
Answer:
Ellen invested $60 and Bob invested $140
Step-by-step explanation:
let the two amounts invested by 3x and 7x
(notice 3x : 7x = 3 : 7 )
then 3x + 7x = 200
10x = 200
x = 20
then 3x = 3(20) = 60
and 7x = 7(20) = 140
60+140=200
 
        
             
        
        
        
Answer:
41
Step-by-step explanation:
supplementary angle is 180
therfore to fin
d the answer =
180-139=41
 
        
             
        
        
        
Answer:
Betty got $180
Step-by-step explanation:
If its 2:3 and 2 is 120,  that means 120/2 equals 60. 60*3=180