A.0,55 mol.
B.0,45 mol.
C.0,25 mol.
D.0,50 mol.

A.2.
B.1.
C.4
D.3

A.0,04.
B.0,16.
C.0,08.
D.0,18.

A.\(\left\{ {\left( {\sqrt 6 ;1} \right),\left( {\sqrt 3 ; - 2} \right)} \right\}\).
B.\(\left\{ {\left( {\sqrt 7 ;1} \right),\left( {\sqrt 3 ; - 2} \right)} \right\}\).
C.\(\left\{ {\left( {\sqrt 6 ;1} \right),\left( {\sqrt 5 ; - 2} \right)} \right\}\).
D.\(\left\{ {\left( {\sqrt 6 ;1} \right),\left( {\sqrt 3 ; - 4} \right)} \right\}\).

A.\(S = \left\{ {0;\frac{{ - 2 + 2\sqrt 7 }}{3}} \right\}\).
B.\(S = \left\{ {0;\frac{{ - 2 + 3\sqrt 7 }}{3}} \right\}\).
C.\(S = \left\{ {0;\frac{{ - 2 + 2\sqrt 5 }}{3}} \right\}\).
D.\(S = \left\{ {0;\frac{{ - 2 + 2\sqrt 7 }}{7}} \right\}\).

A.signal
B.scene
C.signature
D.scenery

A.signal
B.scene
C.signature
D.scenery

A.raise
B.wait
C.rain
D.pair

A.speak
B.teach
C.meat
D.ear

A.common
B.come
C.brother
D.none