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z D.
1.1.
) D: (y-3)2=-2; y=x-5. z=2+3
) D: y-x=3; y=8-4x; x+4y=2. z-5=(x-1)2+(y-1)2
1.2.
) D: (x-1)2 =-1; y=x-1. z=8-2+7
) D: 3y=x+12; y=2x-1; x+2y=3. 3-z=(x+2)2+(y-1)2
1.3.
) D: (-3)2 =6-; +=7. z=3-6+5
) D: 2y=x-1; y=2x+4; x+4y=7. z-4=(x+1)2+(y-1)2
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1.4.
) D: (x-2)2 =3-; y=x-1. z=4-+7
) D: y+3x=4; y=x; 3x+5y=32. 5-z=(x-1)2+(y-3)2
1.5.
) D: (-4)2 =5-; -y+1=0. z=2+4-5
) D: 3y=4-2x; y=28-6x; 2x-5y+12=0. 6-z=(x-3)2+(y-2)2
1.6.
) D: (x+2)2 =-1; y=x+5. z=3+-4
) D: 3y=x+12; y=2x-1; x+2y=3. z+2=(x-3)2+(y-3)2
1.7.
) D: (-2)2 =-1; y=x-5. z=-8
) D: y-x=3; y=8-4x; x+4y=2. z+3=(x+1)2+(y-3)2
1.8.
) D: (x+2)2 =4-; y+x=0. z=6-2+11
) D: 2y=x-1; y=2x+4; x+4y=7. z-4=(x-1)2+(y-2)2
1.9.
) D: (-1)2 =4-; 2y-x-1=0. z=3+9-11
) D: y+3x=4; y=x; 3x+5y=32. 5-z=(x-2)2+(y-4)2
1.10.
) D: (x+1)2 =+5; y+x+4=0. z=4-2+7
) D: 3y=4-2x; y=28-6x; 2x-5y+12=0. z+6=(x-4)2+(y-1)2
2. . .
2.1 , : 9, 8, 7,5, 12. 90 96 . 8 ..., 11. , .
2.2 , : 4, 7, 12, 8. 48 72 . 30 ..., 45. , .
2.3 , 1 2 . 224, 198 230. 14, 11 10 , 16, 18, 23. 11, 21 . , .
2.4 (I, II). (, ), 5000 4000 7000 . . I II 25 40 . . , .
I | II | |
2.5 . 3 . , 6 . 3 . . 4, 3, 7. 1 15 . 17 . 20 . . , 70 . ., 80 ..
2.6 . 8 2 , 4 9 . 96 36 . . . 6, 13 . .
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2.7 , : 6, 9, 10, 8. 40 56 . 27 ..., 35. , .
2.8 , 1 2 . 254, 228 250. 14, 11 10 , 15, 17, 21. 18, 21 . , .
2.9 . 10 14 , 6 20 . 58 86 . 11, 13 . .
2.10 . (I II) , 32 ., 25 ., 30 . D 20 . 50 60 . , , D I II .
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3. -. .
3.1. , , , , . 117 .., 144 .., 90 .. 13 . 9 , 12 12 , 6 15 . 8 ..., 13 ..., 7 ... , .
3.2. : , , . , , , 1200, 700, 800 ., . 30 . , 7. , 6 . ; 20 . , 5 . , 2 . ; - 12 . , 8 . , 4 . . 4 ..., 3 ..., 2 ... , .
3.3. , , , . 230 , 224 , 198 . 10 . , 5 20 , . 14 16 , 11 18 . . 12 ..., 15 ..., 14 ... , .
3.4. ( , ) , , . 600, 400, 300 . . 3 ., 2 ., -3 ., 4., 4., -3 ., - 5 ., 4 ., -2 . 40 ..., 50 ..., 60 ... , .
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3.5. , , , , 200, 120, 400 . 10 . , 17 . 6 . , - 20 . , 5 . 2 . , - 12 . , 8 . 4 . . 5 ..., 6 ..., 3 ... ,
3.6. , , . 900 . , 600 . 800 . . 24 . , 12 . 22 . ; - 20, 22, 14 . , - 12, 16 18 . 5 ..., 6 ... , .
3.7. (, , ) , , 130, 100, 120 . . . 4 . , 2. , 5 . . 4 . , 2. , 5 . . - 3 . , 1 . , 4 . . - 2 . , 4 . , 2 . . 10 ..., - 15 ..., - 18 ... , .
3.8. : , , . , 1300, 1000, 800 ., . 24, 20, 12 ., , , ; 12, 32, 16 .; 22, 14, 28 . 5 ..., 6 ..., 7 ... , .
3.9. , , . (900 .), (700 .) (800 .). 24 . , 12 . 22 . ; 20, 22, 14 . , 12, 16 18 . - 5 ..., 6 ... , .
3.10. (, ) : , , . 250 , 244 , 218 . 12 . 25 . , 16 16 . , 13 . 20 . . 14 ..., 15 ..., 16 ... , .
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4.1.. - 300, 200, 150 250 . 120, 330, 210, 100 80 . . ,
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4.2. , 180, 100, 220, 80, 250. , 120, 300, 150, 150 . ,
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4.3. 250, 300, 200 150 . 220, 300, 250, 100 190 . . ,
4.4. 250, 300, 200 150 . 220, 250, 240, 180 150 . . , :
4.5. - 300, 350, 240 260 . 250, 270, 200, 150 190 . . , ,
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4.6. 300, 350, 240 270 . . 250, 270, 200, 170 190 . . ,
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4.7. - 200, 320, 250 250 . 220, 300, 260, 100 90 . . ,
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4.8. 250, 300, 250 150 . 220, 300, 250, 150 190 . . , .
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4.9. - 320, 230, 180 250 . 120, 330, 210, 190 110 . . ,
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4.10. 300, 350, 220 270 . 250, 270, 200, 150 190 . . , :