18: :
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-31 6 :
| a | b | c | d | f |
1-3. 1, 2, 3 : .., .., - .. Microsoft l : . : "", 2010. 95 .(.419).
4: y , : a=16; b=-6; c=25,34; k=5; d=8,1234; p=2,45×102; x .
| 6 | 
| x>a; x=k x=a; . |
: 6
, , , , : 500 750 . . ; 500 1000 1250 . .; 1000 5000 2700 . .; 5000 10000 5500 . . : 2, 300, 500, 750, 1000, 2500, 5000, 7500, 10000 12000 .
6: :
| ʳ | ||||||
| "5" | "4" | "3" | "3" | |||
| -17 | * | * | ||||
| -12 | * | * | ||||
| -13 | * | * | ||||
| -14 | * | * | ||||
| * |
7: : 15. , 
. 䒺 B. , B . . 䒺 .
8: : 2.45. : ) ; ) :
| x1 | +2x2 | +5x3 | =4 |
| 2x1 | -3x2 | -3x3 | =7 | |
| 3x1 | -5x2 | +x3 | =4 |
: .. . " " 9 ( .100). 406
18: :
V- - ; n - .
-31 7 :
| a | b | c | d | f |
1-3. 1, 2, 3 : .., .., - .. Microsoft l : . : "", 2010. 95 .(.419).
|
|
|
4: y , : a=16; b=-6; c=25,34; k=5; d=8,1234; p=2,45×102; x .
| 7 | 
| x<b; x=b x=c; . |
: 7
, , , , : 1000 5000 2700 . . ; 5000 10000 5500 . .; 10000 25000 11000 . .; 25000 16000 . . : 2, 800, 1000, 2500, 5000, 8000, 10000, 15000, 25000 30000 .
6: :
| ʳ | ||||||
| "5" | "4" | "3" | "3" | |||
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| -12 | * | * | ||||
| -13 | * | * | ||||
| -14 | * | * | ||||
| * |
7: : 14. , 
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8: : 2.44. : ) ; ) :
|
| x1 | +x2 | -x3 | =2 |
| 2x1 | -x2 | -x3 | =-3 | |
| x1 | +x2 | +x3 | =6 |
