HOME RE Basketball is my
favourite sport.
December 19, 2008
By Daniel Jarasa, Glendale, CA
The sport of basketball is fun for any
person: young or old. Basketball is a
great way of exercise, a great way to
have fun with friends and make some
new ones. I think playing basketball
is better than playing video games or
watching television
I love basketball because you can
play the game with or without friends. I
prefer to play in teams. One more thing
I love basketball is that there are many
different styles of play. The players can
pass, throw or jump high very well.
When I have the ball, I feel the best
and no one can stop me. I love playing
basketball but I also love watching it
To me basketball is the best sport of all
other sports like baseball and football
I like watching basketball on television
because you can see how well famous
sportsmen play basketball. I watch their​

х-собственная скорость катера

2*(х+2)=3*(х-2)

2х+4=3х-6

х=10 км\ч-скорость катера в стоячей воде

b4=b1*g^3

b1=b4/g^3

g^3=-3*(-3)*(-3)=-27

b1=-54/-27

b1=2

1. 38/4=9,5 км/час - общая скорость туристов (скорость сближения)

пусть скорость 1 туриста х, а второго у км/час. тогда х+у=9,5 -первое уравнение системы.

первый прошел до встречи 4х км, а второй 4у км, 4х-4у=2 - второе уравнение.

имеем:

х+у=9,5      х=9,5-у                  х=9,5-у      х=9,5-у    у=5

4х-4у=2    4(9,5-у)-4у=2    38-8у=2  8у=40          х=4,5

  y=x^3-9x^2+24x-4                                                                  на отрезке [3; 6]

y`=3x^2-18x+24

      =3(x^2-6x+8)=3(x-2)(x-4)

y`=0    при      3(x-2)(x-4)=0

                            x=2 не принадлежит [3; 6]

                            x=6  принадлежит   [3; 6]

у(3)=27-9*9+24*3-4=14 -наименьшее

у(6)=216-9*36+24*6-4=32-наибольшее

ответ: 14