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binodkharal2048
19.08.2019 •
Mathematics
Solving systems of linear inequalities: -2 less than or equal to y less than or equal to 6
3y less than or equal to 4x + 26
y less than or equal to -2x + 2
f(x,y) = -3x -6y
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Ответ:
y<-2x+2
Multiply the second equation by 2 to eliminate y
3y<=4x+26
2y<=-4x+4
5y<=30
Divide both sides by 5
y<=6
Substitute the value lets say y=6
6<=-2x+2
4<=-2x
-2>=x
Ответ:
The newspaper publisher should check a random sample of the newspapers to avoid a biased sample. The sample needs to be large enough to be representative of the population.
Step-by-step explanation: