Ответы и объяснения

2013-05-20T16:54:10+00:00

 

v0=10

s4=s(4)-s(3)=25

s(4)=10*4+a*8

s(3)=10*3+a*9/2

s4=10+a*7/2

a=(25-10)*2/7=30/7

 

 v(7)=10+30/7*7=40

s(10)=10*10+30/7* 100/2=100(1+30/14)=100*44/14=314.29