А)0,0052
Б)0,0039
В)0,00009
=104n+26+20720-62160n-20+30-42n=-62098n+20756
Неверно.
98 | 4
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8 24,5
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18
16
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20
20
------
0
1.1) -3 1/3+2 5/6 = 2 5/6-3 2/6 = 2 5/6-2 8/6 = -3/6 = -1/2
2) -8 5/9+7 2/9 = -1 3/9 = -1 1/3
3) -1/2*(-1 1/3) = 1/2*4/3 = 2/3
2.1) 1 1/3*(-3/4) = -4/3*3/4 = -1
2) -2 1/7*1 2/5 = -9/7*7/5 = -9/5 = -1 4/5
3) -1-(-1 4/5) = -1+1 4/5 = 4/5
(133+х)-583=426
133+х-583=426
х=426+583-133
х=876
(133+876)-583=426
1009-583=426