№1
а) (-0,75; 2,75)
б) (0,1875; -5,25)
№2
б) n=2/3, m=1/3
в) z=3. y=-0.6
6m-9n=-4
2m+5n=4 / * -3
6m-9n=-4
-6m-15n=-12
способ сложения
-9n-15n=-4-12
-24n=-16
n=2/3
2m+5n=4
2m+5*2/3=4
m=1/3
б) 5y+8z=21 / * -2
10y-3z=-15
-10y-16z=-42
10y-3z=-15
способ сложения
-16z-3z=-42-15
-19z=-57
z=3
5y+8z=21
5y+8*3=21
5y=21-24
5y=-3
y=-0.6
1) suddenly mr. bunting felt anything take hold of the back of his neck.
did mr. bunting suddenly feel anything take hold of the back of his neck?
did mr. bunting suddenly feel anything take hold of the back of his neck or his arms?
suddenly mr. bunting felt anything take hold of the back of his neck, didn't he?
who felt suddenly anything take hold of the back of the neck?
what did mr. bunting feel?
2) he was unable to lift his head.
was he unable to lift his head?
was he unable to lift his head or neck?
he was unable to lift his head, wasn't he?
who was unable to lift his head?
what was he unable to lift?
3) mr.bunting looked at cuss, whose face had turned white with fear.
did mr.bunting look at cuss, whose face had turned white with fear?
did mr.bunting or mr.brown look at cuss, whose face had turned white with fear?
mr bunting looked at cuss, whose face had turned white with fear, didn't he?
who looked at cuss?
whom did mr.bunting look at?
Объяснение:
Что надо иметь с собой, чтобы опускать голову в воду, при плавании кроль на груди?
Шапку для плавания или очки
Что меняется в темпе плавания кроль на груди?
С ростом квалификации фаза гребков увеличивается
Длительность скольжения
не знаю